Home / 87,926.87-121,272.12-75,683.11

Finding the Fourth Proportional to 87,926.87, 121,272.12 and 75,683.11

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Solution

The fourth proportional to 87,926.87, 121,272.12 and 75,683.11 is: 104,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.87 : 121,272.12 = 75,683.11 : x
  2. Step 2: Convert to fraction form
    87,926.87/121,272.12 = 75,683.11/x
  3. Step 3: Cross multiply
    87,926.87x = 121,272.12 × 75,683.11
  4. Step 4: Simplify right side
    87,926.87x = 9,178,251,197.89
  5. Step 5: Solve for x
    x = 9,178,251,197.89/87,926.87
  6. Step 6: Final answer
    x = 104,385.06

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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.