Home / 66,439.14-91,691.46-38,150.34

Finding the Fourth Proportional to 66,439.14, 91,691.46 and 38,150.34

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Solution

The fourth proportional to 66,439.14, 91,691.46 and 38,150.34 is: 52,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.14 : 91,691.46 = 38,150.34 : x
  2. Step 2: Convert to fraction form
    66,439.14/91,691.46 = 38,150.34/x
  3. Step 3: Cross multiply
    66,439.14x = 91,691.46 × 38,150.34
  4. Step 4: Simplify right side
    66,439.14x = 3,498,060,374.10
  5. Step 5: Solve for x
    x = 3,498,060,374.10/66,439.14
  6. Step 6: Final answer
    x = 52,650.60

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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.