Home / 87,059.08-130,761.42-74,574.28

Finding the Fourth Proportional to 87,059.08, 130,761.42 and 74,574.28

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Solution

The fourth proportional to 87,059.08, 130,761.42 and 74,574.28 is: 112,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,059.08 : 130,761.42 = 74,574.28 : x
  2. Step 2: Convert to fraction form
    87,059.08/130,761.42 = 74,574.28/x
  3. Step 3: Cross multiply
    87,059.08x = 130,761.42 × 74,574.28
  4. Step 4: Simplify right side
    87,059.08x = 9,751,438,748.28
  5. Step 5: Solve for x
    x = 9,751,438,748.28/87,059.08
  6. Step 6: Final answer
    x = 112,009.44

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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.