Home / 71,644.38-107,549.60-38,429.32

Finding the Fourth Proportional to 71,644.38, 107,549.60 and 38,429.32

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Solution

The fourth proportional to 71,644.38, 107,549.60 and 38,429.32 is: 57,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,644.38 : 107,549.60 = 38,429.32 : x
  2. Step 2: Convert to fraction form
    71,644.38/107,549.60 = 38,429.32/x
  3. Step 3: Cross multiply
    71,644.38x = 107,549.60 × 38,429.32
  4. Step 4: Simplify right side
    71,644.38x = 4,133,057,994.27
  5. Step 5: Solve for x
    x = 4,133,057,994.27/71,644.38
  6. Step 6: Final answer
    x = 57,688.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.