Home / 87,510.04-131,068.02-61,331.68

Finding the Fourth Proportional to 87,510.04, 131,068.02 and 61,331.68

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Solution

The fourth proportional to 87,510.04, 131,068.02 and 61,331.68 is: 91,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,510.04 : 131,068.02 = 61,331.68 : x
  2. Step 2: Convert to fraction form
    87,510.04/131,068.02 = 61,331.68/x
  3. Step 3: Cross multiply
    87,510.04x = 131,068.02 × 61,331.68
  4. Step 4: Simplify right side
    87,510.04x = 8,038,621,860.87
  5. Step 5: Solve for x
    x = 8,038,621,860.87/87,510.04
  6. Step 6: Final answer
    x = 91,859.42

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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.