Home / 87,897.29-121,292.24-49,658.40

Finding the Fourth Proportional to 87,897.29, 121,292.24 and 49,658.40

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Solution

The fourth proportional to 87,897.29, 121,292.24 and 49,658.40 is: 68,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.29 : 121,292.24 = 49,658.40 : x
  2. Step 2: Convert to fraction form
    87,897.29/121,292.24 = 49,658.40/x
  3. Step 3: Cross multiply
    87,897.29x = 121,292.24 × 49,658.40
  4. Step 4: Simplify right side
    87,897.29x = 6,023,178,322.52
  5. Step 5: Solve for x
    x = 6,023,178,322.52/87,897.29
  6. Step 6: Final answer
    x = 68,525.19

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1.5x scale

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.