Home / 90,149.84-135,266.88-40,224.72

Finding the Fourth Proportional to 90,149.84, 135,266.88 and 40,224.72

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Solution

The fourth proportional to 90,149.84, 135,266.88 and 40,224.72 is: 60,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,149.84 : 135,266.88 = 40,224.72 : x
  2. Step 2: Convert to fraction form
    90,149.84/135,266.88 = 40,224.72/x
  3. Step 3: Cross multiply
    90,149.84x = 135,266.88 × 40,224.72
  4. Step 4: Simplify right side
    90,149.84x = 5,441,072,373.27
  5. Step 5: Solve for x
    x = 5,441,072,373.27/90,149.84
  6. Step 6: Final answer
    x = 60,355.87

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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.