Home / 90,280.74-135,453.51-40,356.66

Finding the Fourth Proportional to 90,280.74, 135,453.51 and 40,356.66

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Solution

The fourth proportional to 90,280.74, 135,453.51 and 40,356.66 is: 60,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,280.74 : 135,453.51 = 40,356.66 : x
  2. Step 2: Convert to fraction form
    90,280.74/135,453.51 = 40,356.66/x
  3. Step 3: Cross multiply
    90,280.74x = 135,453.51 × 40,356.66
  4. Step 4: Simplify right side
    90,280.74x = 5,466,451,248.88
  5. Step 5: Solve for x
    x = 5,466,451,248.88/90,280.74
  6. Step 6: Final answer
    x = 60,549.47

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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.