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Finding the Fourth Proportional to 66,695.48, 92,042.71 and 38,410.28

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Solution

The fourth proportional to 66,695.48, 92,042.71 and 38,410.28 is: 53,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.48 : 92,042.71 = 38,410.28 : x
  2. Step 2: Convert to fraction form
    66,695.48/92,042.71 = 38,410.28/x
  3. Step 3: Cross multiply
    66,695.48x = 92,042.71 × 38,410.28
  4. Step 4: Simplify right side
    66,695.48x = 3,535,386,263.06
  5. Step 5: Solve for x
    x = 3,535,386,263.06/66,695.48
  6. Step 6: Final answer
    x = 53,007.88

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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.