Home / 90,862.31-125,389.99-50,575.20

Finding the Fourth Proportional to 90,862.31, 125,389.99 and 50,575.20

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Solution

The fourth proportional to 90,862.31, 125,389.99 and 50,575.20 is: 69,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.31 : 125,389.99 = 50,575.20 : x
  2. Step 2: Convert to fraction form
    90,862.31/125,389.99 = 50,575.20/x
  3. Step 3: Cross multiply
    90,862.31x = 125,389.99 × 50,575.20
  4. Step 4: Simplify right side
    90,862.31x = 6,341,624,120.57
  5. Step 5: Solve for x
    x = 6,341,624,120.57/90,862.31
  6. Step 6: Final answer
    x = 69,793.78

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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.