Home / 90,143.66-135,158.24-47,997.74

Finding the Fourth Proportional to 90,143.66, 135,158.24 and 47,997.74

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Solution

The fourth proportional to 90,143.66, 135,158.24 and 47,997.74 is: 71,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,143.66 : 135,158.24 = 47,997.74 : x
  2. Step 2: Convert to fraction form
    90,143.66/135,158.24 = 47,997.74/x
  3. Step 3: Cross multiply
    90,143.66x = 135,158.24 × 47,997.74
  4. Step 4: Simplify right side
    90,143.66x = 6,487,290,062.38
  5. Step 5: Solve for x
    x = 6,487,290,062.38/90,143.66
  6. Step 6: Final answer
    x = 71,966.13

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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.