Home / 90,716.40-136,027.91-40,753.62

Finding the Fourth Proportional to 90,716.40, 136,027.91 and 40,753.62

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Solution

The fourth proportional to 90,716.40, 136,027.91 and 40,753.62 is: 61,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,716.40 : 136,027.91 = 40,753.62 : x
  2. Step 2: Convert to fraction form
    90,716.40/136,027.91 = 40,753.62/x
  3. Step 3: Cross multiply
    90,716.40x = 136,027.91 × 40,753.62
  4. Step 4: Simplify right side
    90,716.40x = 5,543,629,549.77
  5. Step 5: Solve for x
    x = 5,543,629,549.77/90,716.40
  6. Step 6: Final answer
    x = 61,109.45

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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.