Home / 87,076.80-130,614.64-42,045.60

Finding the Fourth Proportional to 87,076.80, 130,614.64 and 42,045.60

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Solution

The fourth proportional to 87,076.80, 130,614.64 and 42,045.60 is: 63,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076.80 : 130,614.64 = 42,045.60 : x
  2. Step 2: Convert to fraction form
    87,076.80/130,614.64 = 42,045.60/x
  3. Step 3: Cross multiply
    87,076.80x = 130,614.64 × 42,045.60
  4. Step 4: Simplify right side
    87,076.80x = 5,491,770,907.58
  5. Step 5: Solve for x
    x = 5,491,770,907.58/87,076.80
  6. Step 6: Final answer
    x = 63,068.13

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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.