Home / 84,546.20-116,408.20-71,772.91

Finding the Fourth Proportional to 84,546.20, 116,408.20 and 71,772.91

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Solution

The fourth proportional to 84,546.20, 116,408.20 and 71,772.91 is: 98,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,546.20 : 116,408.20 = 71,772.91 : x
  2. Step 2: Convert to fraction form
    84,546.20/116,408.20 = 71,772.91/x
  3. Step 3: Cross multiply
    84,546.20x = 116,408.20 × 71,772.91
  4. Step 4: Simplify right side
    84,546.20x = 8,354,955,261.86
  5. Step 5: Solve for x
    x = 8,354,955,261.86/84,546.20
  6. Step 6: Final answer
    x = 98,821.18

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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.