Home / 90,337.55-135,537.77-40,422.92

Finding the Fourth Proportional to 90,337.55, 135,537.77 and 40,422.92

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Solution

The fourth proportional to 90,337.55, 135,537.77 and 40,422.92 is: 60,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,337.55 : 135,537.77 = 40,422.92 : x
  2. Step 2: Convert to fraction form
    90,337.55/135,537.77 = 40,422.92/x
  3. Step 3: Cross multiply
    90,337.55x = 135,537.77 × 40,422.92
  4. Step 4: Simplify right side
    90,337.55x = 5,478,832,231.57
  5. Step 5: Solve for x
    x = 5,478,832,231.57/90,337.55
  6. Step 6: Final answer
    x = 60,648.45

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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.