Home / 90,254.92-135,382.64-31,089.84

Finding the Fourth Proportional to 90,254.92, 135,382.64 and 31,089.84

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Solution

The fourth proportional to 90,254.92, 135,382.64 and 31,089.84 is: 46,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,254.92 : 135,382.64 = 31,089.84 : x
  2. Step 2: Convert to fraction form
    90,254.92/135,382.64 = 31,089.84/x
  3. Step 3: Cross multiply
    90,254.92x = 135,382.64 × 31,089.84
  4. Step 4: Simplify right side
    90,254.92x = 4,209,024,616.38
  5. Step 5: Solve for x
    x = 4,209,024,616.38/90,254.92
  6. Step 6: Final answer
    x = 46,634.85

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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.