Home / 52,400.97-72,331.56-31,179.78

Finding the Fourth Proportional to 52,400.97, 72,331.56 and 31,179.78

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Solution

The fourth proportional to 52,400.97, 72,331.56 and 31,179.78 is: 43,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,400.97 : 72,331.56 = 31,179.78 : x
  2. Step 2: Convert to fraction form
    52,400.97/72,331.56 = 31,179.78/x
  3. Step 3: Cross multiply
    52,400.97x = 72,331.56 × 31,179.78
  4. Step 4: Simplify right side
    52,400.97x = 2,255,282,127.86
  5. Step 5: Solve for x
    x = 2,255,282,127.86/52,400.97
  6. Step 6: Final answer
    x = 43,038.94

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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.