Home / 87,810.80-131,729.02-28,631.93

Finding the Fourth Proportional to 87,810.80, 131,729.02 and 28,631.93

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Solution

The fourth proportional to 87,810.80, 131,729.02 and 28,631.93 is: 42,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,810.80 : 131,729.02 = 28,631.93 : x
  2. Step 2: Convert to fraction form
    87,810.80/131,729.02 = 28,631.93/x
  3. Step 3: Cross multiply
    87,810.80x = 131,729.02 × 28,631.93
  4. Step 4: Simplify right side
    87,810.80x = 3,771,655,349.38
  5. Step 5: Solve for x
    x = 3,771,655,349.38/87,810.80
  6. Step 6: Final answer
    x = 42,952.07

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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.