Home / 90,139.30-124,387.18-49,295.30

Finding the Fourth Proportional to 90,139.30, 124,387.18 and 49,295.30

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Solution

The fourth proportional to 90,139.30, 124,387.18 and 49,295.30 is: 68,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,139.30 : 124,387.18 = 49,295.30 : x
  2. Step 2: Convert to fraction form
    90,139.30/124,387.18 = 49,295.30/x
  3. Step 3: Cross multiply
    90,139.30x = 124,387.18 × 49,295.30
  4. Step 4: Simplify right side
    90,139.30x = 6,131,702,609.08
  5. Step 5: Solve for x
    x = 6,131,702,609.08/90,139.30
  6. Step 6: Final answer
    x = 68,024.74

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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.