Home / 90,381.64-135,545.09-27,184.98

Finding the Fourth Proportional to 90,381.64, 135,545.09 and 27,184.98

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Solution

The fourth proportional to 90,381.64, 135,545.09 and 27,184.98 is: 40,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,381.64 : 135,545.09 = 27,184.98 : x
  2. Step 2: Convert to fraction form
    90,381.64/135,545.09 = 27,184.98/x
  3. Step 3: Cross multiply
    90,381.64x = 135,545.09 × 27,184.98
  4. Step 4: Simplify right side
    90,381.64x = 3,684,790,560.75
  5. Step 5: Solve for x
    x = 3,684,790,560.75/90,381.64
  6. Step 6: Final answer
    x = 40,769.24

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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.