Home / 87,122.92-130,699.74-40,428.52

Finding the Fourth Proportional to 87,122.92, 130,699.74 and 40,428.52

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Solution

The fourth proportional to 87,122.92, 130,699.74 and 40,428.52 is: 60,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.92 : 130,699.74 = 40,428.52 : x
  2. Step 2: Convert to fraction form
    87,122.92/130,699.74 = 40,428.52/x
  3. Step 3: Cross multiply
    87,122.92x = 130,699.74 × 40,428.52
  4. Step 4: Simplify right side
    87,122.92x = 5,283,997,052.58
  5. Step 5: Solve for x
    x = 5,283,997,052.58/87,122.92
  6. Step 6: Final answer
    x = 60,649.91

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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.