Home / 87,951.03-121,306.00-55,254.95

Finding the Fourth Proportional to 87,951.03, 121,306.00 and 55,254.95

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Solution

The fourth proportional to 87,951.03, 121,306.00 and 55,254.95 is: 76,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.03 : 121,306.00 = 55,254.95 : x
  2. Step 2: Convert to fraction form
    87,951.03/121,306.00 = 55,254.95/x
  3. Step 3: Cross multiply
    87,951.03x = 121,306.00 × 55,254.95
  4. Step 4: Simplify right side
    87,951.03x = 6,702,756,496.31
  5. Step 5: Solve for x
    x = 6,702,756,496.31/87,951.03
  6. Step 6: Final answer
    x = 76,210.10

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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.