Home / 90,549.28-124,923.72-66,732.76

Finding the Fourth Proportional to 90,549.28, 124,923.72 and 66,732.76

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Solution

The fourth proportional to 90,549.28, 124,923.72 and 66,732.76 is: 92,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,549.28 : 124,923.72 = 66,732.76 : x
  2. Step 2: Convert to fraction form
    90,549.28/124,923.72 = 66,732.76/x
  3. Step 3: Cross multiply
    90,549.28x = 124,923.72 × 66,732.76
  4. Step 4: Simplify right side
    90,549.28x = 8,336,504,625.07
  5. Step 5: Solve for x
    x = 8,336,504,625.07/90,549.28
  6. Step 6: Final answer
    x = 92,065.94

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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.