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Finding the Fourth Proportional to 90,169.74, 135,301.76 and 36,901.24

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Solution

The fourth proportional to 90,169.74, 135,301.76 and 36,901.24 is: 55,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,169.74 : 135,301.76 = 36,901.24 : x
  2. Step 2: Convert to fraction form
    90,169.74/135,301.76 = 36,901.24/x
  3. Step 3: Cross multiply
    90,169.74x = 135,301.76 × 36,901.24
  4. Step 4: Simplify right side
    90,169.74x = 4,992,802,718.18
  5. Step 5: Solve for x
    x = 4,992,802,718.18/90,169.74
  6. Step 6: Final answer
    x = 55,371.16

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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.