Home / 90,633.68-135,744.96-48,439.52

Finding the Fourth Proportional to 90,633.68, 135,744.96 and 48,439.52

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Solution

The fourth proportional to 90,633.68, 135,744.96 and 48,439.52 is: 72,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,633.68 : 135,744.96 = 48,439.52 : x
  2. Step 2: Convert to fraction form
    90,633.68/135,744.96 = 48,439.52/x
  3. Step 3: Cross multiply
    90,633.68x = 135,744.96 × 48,439.52
  4. Step 4: Simplify right side
    90,633.68x = 6,575,420,704.82
  5. Step 5: Solve for x
    x = 6,575,420,704.82/90,633.68
  6. Step 6: Final answer
    x = 72,549.42

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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.