Home / 87,140.34-130,761.54-34,543.26

Finding the Fourth Proportional to 87,140.34, 130,761.54 and 34,543.26

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Solution

The fourth proportional to 87,140.34, 130,761.54 and 34,543.26 is: 51,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,140.34 : 130,761.54 = 34,543.26 : x
  2. Step 2: Convert to fraction form
    87,140.34/130,761.54 = 34,543.26/x
  3. Step 3: Cross multiply
    87,140.34x = 130,761.54 × 34,543.26
  4. Step 4: Simplify right side
    87,140.34x = 4,516,929,874.22
  5. Step 5: Solve for x
    x = 4,516,929,874.22/87,140.34
  6. Step 6: Final answer
    x = 51,835.12

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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.