Home / 87,266.60-120,426.18-51,458.12

Finding the Fourth Proportional to 87,266.60, 120,426.18 and 51,458.12

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Solution

The fourth proportional to 87,266.60, 120,426.18 and 51,458.12 is: 71,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,266.60 : 120,426.18 = 51,458.12 : x
  2. Step 2: Convert to fraction form
    87,266.60/120,426.18 = 51,458.12/x
  3. Step 3: Cross multiply
    87,266.60x = 120,426.18 × 51,458.12
  4. Step 4: Simplify right side
    87,266.60x = 6,196,904,821.58
  5. Step 5: Solve for x
    x = 6,196,904,821.58/87,266.60
  6. Step 6: Final answer
    x = 71,011.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.