Home / 90,393.17-135,591.18-34,218.20

Finding the Fourth Proportional to 90,393.17, 135,591.18 and 34,218.20

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Solution

The fourth proportional to 90,393.17, 135,591.18 and 34,218.20 is: 51,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,393.17 : 135,591.18 = 34,218.20 : x
  2. Step 2: Convert to fraction form
    90,393.17/135,591.18 = 34,218.20/x
  3. Step 3: Cross multiply
    90,393.17x = 135,591.18 × 34,218.20
  4. Step 4: Simplify right side
    90,393.17x = 4,639,685,437.52
  5. Step 5: Solve for x
    x = 4,639,685,437.52/90,393.17
  6. Step 6: Final answer
    x = 51,327.83

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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.