Home / 87,577.50-120,857.10-49,851.75

Finding the Fourth Proportional to 87,577.50, 120,857.10 and 49,851.75

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Solution

The fourth proportional to 87,577.50, 120,857.10 and 49,851.75 is: 68,795.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.50 : 120,857.10 = 49,851.75 : x
  2. Step 2: Convert to fraction form
    87,577.50/120,857.10 = 49,851.75/x
  3. Step 3: Cross multiply
    87,577.50x = 120,857.10 × 49,851.75
  4. Step 4: Simplify right side
    87,577.50x = 6,024,937,934.93
  5. Step 5: Solve for x
    x = 6,024,937,934.93/87,577.50
  6. Step 6: Final answer
    x = 68,795.50

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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.