Home / 81,202.16-112,077.06-49,364.30

Finding the Fourth Proportional to 81,202.16, 112,077.06 and 49,364.30

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Solution

The fourth proportional to 81,202.16, 112,077.06 and 49,364.30 is: 68,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,202.16 : 112,077.06 = 49,364.30 : x
  2. Step 2: Convert to fraction form
    81,202.16/112,077.06 = 49,364.30/x
  3. Step 3: Cross multiply
    81,202.16x = 112,077.06 × 49,364.30
  4. Step 4: Simplify right side
    81,202.16x = 5,532,605,612.96
  5. Step 5: Solve for x
    x = 5,532,605,612.96/81,202.16
  6. Step 6: Final answer
    x = 68,133.72

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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.