Home / 87,479.76-120,582.36-59,136.24

Finding the Fourth Proportional to 87,479.76, 120,582.36 and 59,136.24

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Solution

The fourth proportional to 87,479.76, 120,582.36 and 59,136.24 is: 81,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,479.76 : 120,582.36 = 59,136.24 : x
  2. Step 2: Convert to fraction form
    87,479.76/120,582.36 = 59,136.24/x
  3. Step 3: Cross multiply
    87,479.76x = 120,582.36 × 59,136.24
  4. Step 4: Simplify right side
    87,479.76x = 7,130,787,380.73
  5. Step 5: Solve for x
    x = 7,130,787,380.73/87,479.76
  6. Step 6: Final answer
    x = 81,513.57

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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.