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Finding the Fourth Proportional to 90,752.73, 136,129.23 and 35,348.73

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Solution

The fourth proportional to 90,752.73, 136,129.23 and 35,348.73 is: 53,023.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,752.73 : 136,129.23 = 35,348.73 : x
  2. Step 2: Convert to fraction form
    90,752.73/136,129.23 = 35,348.73/x
  3. Step 3: Cross multiply
    90,752.73x = 136,129.23 × 35,348.73
  4. Step 4: Simplify right side
    90,752.73x = 4,811,995,396.38
  5. Step 5: Solve for x
    x = 4,811,995,396.38/90,752.73
  6. Step 6: Final answer
    x = 53,023.15

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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.