Home / 90,229.87-135,268.68-56,876.40

Finding the Fourth Proportional to 90,229.87, 135,268.68 and 56,876.40

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Solution

The fourth proportional to 90,229.87, 135,268.68 and 56,876.40 is: 85,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,229.87 : 135,268.68 = 56,876.40 : x
  2. Step 2: Convert to fraction form
    90,229.87/135,268.68 = 56,876.40/x
  3. Step 3: Cross multiply
    90,229.87x = 135,268.68 × 56,876.40
  4. Step 4: Simplify right side
    90,229.87x = 7,693,596,144.88
  5. Step 5: Solve for x
    x = 7,693,596,144.88/90,229.87
  6. Step 6: Final answer
    x = 85,266.62

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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.