Home / 60,331.92-90,500.31-28,725.72

Finding the Fourth Proportional to 60,331.92, 90,500.31 and 28,725.72

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Solution

The fourth proportional to 60,331.92, 90,500.31 and 28,725.72 is: 43,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,331.92 : 90,500.31 = 28,725.72 : x
  2. Step 2: Convert to fraction form
    60,331.92/90,500.31 = 28,725.72/x
  3. Step 3: Cross multiply
    60,331.92x = 90,500.31 × 28,725.72
  4. Step 4: Simplify right side
    60,331.92x = 2,599,686,564.97
  5. Step 5: Solve for x
    x = 2,599,686,564.97/60,331.92
  6. Step 6: Final answer
    x = 43,089.74

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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.