Home / 90,338.68-124,672.02-54,528.20

Finding the Fourth Proportional to 90,338.68, 124,672.02 and 54,528.20

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Solution

The fourth proportional to 90,338.68, 124,672.02 and 54,528.20 is: 75,251.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,338.68 : 124,672.02 = 54,528.20 : x
  2. Step 2: Convert to fraction form
    90,338.68/124,672.02 = 54,528.20/x
  3. Step 3: Cross multiply
    90,338.68x = 124,672.02 × 54,528.20
  4. Step 4: Simplify right side
    90,338.68x = 6,798,140,840.96
  5. Step 5: Solve for x
    x = 6,798,140,840.96/90,338.68
  6. Step 6: Final answer
    x = 75,251.72

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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.