Home / 87,034.64-130,530.77-36,406.30

Finding the Fourth Proportional to 87,034.64, 130,530.77 and 36,406.30

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Solution

The fourth proportional to 87,034.64, 130,530.77 and 36,406.30 is: 54,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,034.64 : 130,530.77 = 36,406.30 : x
  2. Step 2: Convert to fraction form
    87,034.64/130,530.77 = 36,406.30/x
  3. Step 3: Cross multiply
    87,034.64x = 130,530.77 × 36,406.30
  4. Step 4: Simplify right side
    87,034.64x = 4,752,142,189.82
  5. Step 5: Solve for x
    x = 4,752,142,189.82/87,034.64
  6. Step 6: Final answer
    x = 54,600.58

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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.