Home / 87,808.14-121,175.38-47,521.95

Finding the Fourth Proportional to 87,808.14, 121,175.38 and 47,521.95

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Solution

The fourth proportional to 87,808.14, 121,175.38 and 47,521.95 is: 65,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808.14 : 121,175.38 = 47,521.95 : x
  2. Step 2: Convert to fraction form
    87,808.14/121,175.38 = 47,521.95/x
  3. Step 3: Cross multiply
    87,808.14x = 121,175.38 × 47,521.95
  4. Step 4: Simplify right side
    87,808.14x = 5,758,489,954.59
  5. Step 5: Solve for x
    x = 5,758,489,954.59/87,808.14
  6. Step 6: Final answer
    x = 65,580.37

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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.