Home / 87,042.14-130,349.48-42,525.38

Finding the Fourth Proportional to 87,042.14, 130,349.48 and 42,525.38

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Solution

The fourth proportional to 87,042.14, 130,349.48 and 42,525.38 is: 63,683.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,042.14 : 130,349.48 = 42,525.38 : x
  2. Step 2: Convert to fraction form
    87,042.14/130,349.48 = 42,525.38/x
  3. Step 3: Cross multiply
    87,042.14x = 130,349.48 × 42,525.38
  4. Step 4: Simplify right side
    87,042.14x = 5,543,161,169.80
  5. Step 5: Solve for x
    x = 5,543,161,169.80/87,042.14
  6. Step 6: Final answer
    x = 63,683.65

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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.