Home / 90,863.20-136,278.60-57,523.60

Finding the Fourth Proportional to 90,863.20, 136,278.60 and 57,523.60

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Solution

The fourth proportional to 90,863.20, 136,278.60 and 57,523.60 is: 86,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,863.20 : 136,278.60 = 57,523.60 : x
  2. Step 2: Convert to fraction form
    90,863.20/136,278.60 = 57,523.60/x
  3. Step 3: Cross multiply
    90,863.20x = 136,278.60 × 57,523.60
  4. Step 4: Simplify right side
    90,863.20x = 7,839,235,674.96
  5. Step 5: Solve for x
    x = 7,839,235,674.96/90,863.20
  6. Step 6: Final answer
    x = 86,275.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.