Home / 84,211.20-116,219.40-48,422.16

Finding the Fourth Proportional to 84,211.20, 116,219.40 and 48,422.16

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Solution

The fourth proportional to 84,211.20, 116,219.40 and 48,422.16 is: 66,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,211.20 : 116,219.40 = 48,422.16 : x
  2. Step 2: Convert to fraction form
    84,211.20/116,219.40 = 48,422.16/x
  3. Step 3: Cross multiply
    84,211.20x = 116,219.40 × 48,422.16
  4. Step 4: Simplify right side
    84,211.20x = 5,627,594,381.90
  5. Step 5: Solve for x
    x = 5,627,594,381.90/84,211.20
  6. Step 6: Final answer
    x = 66,827.15

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.