Home / 42,712.88-63,943.16-31,545.41

Finding the Fourth Proportional to 42,712.88, 63,943.16 and 31,545.41

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Solution

The fourth proportional to 42,712.88, 63,943.16 and 31,545.41 is: 47,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.88 : 63,943.16 = 31,545.41 : x
  2. Step 2: Convert to fraction form
    42,712.88/63,943.16 = 31,545.41/x
  3. Step 3: Cross multiply
    42,712.88x = 63,943.16 × 31,545.41
  4. Step 4: Simplify right side
    42,712.88x = 2,017,112,721.45
  5. Step 5: Solve for x
    x = 2,017,112,721.45/42,712.88
  6. Step 6: Final answer
    x = 47,224.93

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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.