Home / 87,675.68-120,962.82-49,923.20

Finding the Fourth Proportional to 87,675.68, 120,962.82 and 49,923.20

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Solution

The fourth proportional to 87,675.68, 120,962.82 and 49,923.20 is: 68,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,675.68 : 120,962.82 = 49,923.20 : x
  2. Step 2: Convert to fraction form
    87,675.68/120,962.82 = 49,923.20/x
  3. Step 3: Cross multiply
    87,675.68x = 120,962.82 × 49,923.20
  4. Step 4: Simplify right side
    87,675.68x = 6,038,851,055.42
  5. Step 5: Solve for x
    x = 6,038,851,055.42/87,675.68
  6. Step 6: Final answer
    x = 68,877.15

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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.