Home / 87,937.86-121,360.20-49,684.14

Finding the Fourth Proportional to 87,937.86, 121,360.20 and 49,684.14

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Solution

The fourth proportional to 87,937.86, 121,360.20 and 49,684.14 is: 68,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.86 : 121,360.20 = 49,684.14 : x
  2. Step 2: Convert to fraction form
    87,937.86/121,360.20 = 49,684.14/x
  3. Step 3: Cross multiply
    87,937.86x = 121,360.20 × 49,684.14
  4. Step 4: Simplify right side
    87,937.86x = 6,029,677,167.23
  5. Step 5: Solve for x
    x = 6,029,677,167.23/87,937.86
  6. Step 6: Final answer
    x = 68,567.48

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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.