Home / 87,860.90-121,245.45-49,622.02

Finding the Fourth Proportional to 87,860.90, 121,245.45 and 49,622.02

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Solution

The fourth proportional to 87,860.90, 121,245.45 and 49,622.02 is: 68,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.90 : 121,245.45 = 49,622.02 : x
  2. Step 2: Convert to fraction form
    87,860.90/121,245.45 = 49,622.02/x
  3. Step 3: Cross multiply
    87,860.90x = 121,245.45 × 49,622.02
  4. Step 4: Simplify right side
    87,860.90x = 6,016,444,144.81
  5. Step 5: Solve for x
    x = 6,016,444,144.81/87,860.90
  6. Step 6: Final answer
    x = 68,476.92

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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.