Home / 42,438.25-63,911.27-38,654.92

Finding the Fourth Proportional to 42,438.25, 63,911.27 and 38,654.92

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Solution

The fourth proportional to 42,438.25, 63,911.27 and 38,654.92 is: 58,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.25 : 63,911.27 = 38,654.92 : x
  2. Step 2: Convert to fraction form
    42,438.25/63,911.27 = 38,654.92/x
  3. Step 3: Cross multiply
    42,438.25x = 63,911.27 × 38,654.92
  4. Step 4: Simplify right side
    42,438.25x = 2,470,484,600.68
  5. Step 5: Solve for x
    x = 2,470,484,600.68/42,438.25
  6. Step 6: Final answer
    x = 58,213.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.