Home / 90,025.19-124,236.07-49,739.88

Finding the Fourth Proportional to 90,025.19, 124,236.07 and 49,739.88

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Solution

The fourth proportional to 90,025.19, 124,236.07 and 49,739.88 is: 68,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.19 : 124,236.07 = 49,739.88 : x
  2. Step 2: Convert to fraction form
    90,025.19/124,236.07 = 49,739.88/x
  3. Step 3: Cross multiply
    90,025.19x = 124,236.07 × 49,739.88
  4. Step 4: Simplify right side
    90,025.19x = 6,179,486,964.77
  5. Step 5: Solve for x
    x = 6,179,486,964.77/90,025.19
  6. Step 6: Final answer
    x = 68,641.75

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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.