Home / 87,172.29-120,287.84-48,926.66

Finding the Fourth Proportional to 87,172.29, 120,287.84 and 48,926.66

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Solution

The fourth proportional to 87,172.29, 120,287.84 and 48,926.66 is: 67,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,172.29 : 120,287.84 = 48,926.66 : x
  2. Step 2: Convert to fraction form
    87,172.29/120,287.84 = 48,926.66/x
  3. Step 3: Cross multiply
    87,172.29x = 120,287.84 × 48,926.66
  4. Step 4: Simplify right side
    87,172.29x = 5,885,281,403.74
  5. Step 5: Solve for x
    x = 5,885,281,403.74/87,172.29
  6. Step 6: Final answer
    x = 67,513.21

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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.