Home / 90,385.73-124,739.78-50,112.13

Finding the Fourth Proportional to 90,385.73, 124,739.78 and 50,112.13

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Solution

The fourth proportional to 90,385.73, 124,739.78 and 50,112.13 is: 69,158.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,385.73 : 124,739.78 = 50,112.13 : x
  2. Step 2: Convert to fraction form
    90,385.73/124,739.78 = 50,112.13/x
  3. Step 3: Cross multiply
    90,385.73x = 124,739.78 × 50,112.13
  4. Step 4: Simplify right side
    90,385.73x = 6,250,976,071.53
  5. Step 5: Solve for x
    x = 6,250,976,071.53/90,385.73
  6. Step 6: Final answer
    x = 69,158.88

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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.