Home / 65,517.47-90,426.11-42,876.56

Finding the Fourth Proportional to 65,517.47, 90,426.11 and 42,876.56

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Solution

The fourth proportional to 65,517.47, 90,426.11 and 42,876.56 is: 59,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,517.47 : 90,426.11 = 42,876.56 : x
  2. Step 2: Convert to fraction form
    65,517.47/90,426.11 = 42,876.56/x
  3. Step 3: Cross multiply
    65,517.47x = 90,426.11 × 42,876.56
  4. Step 4: Simplify right side
    65,517.47x = 3,877,159,864.47
  5. Step 5: Solve for x
    x = 3,877,159,864.47/65,517.47
  6. Step 6: Final answer
    x = 59,177.50

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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.