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Finding the Fourth Proportional to 90,314.94, 135,559.89 and 43,600.62

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Solution

The fourth proportional to 90,314.94, 135,559.89 and 43,600.62 is: 65,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,314.94 : 135,559.89 = 43,600.62 : x
  2. Step 2: Convert to fraction form
    90,314.94/135,559.89 = 43,600.62/x
  3. Step 3: Cross multiply
    90,314.94x = 135,559.89 × 43,600.62
  4. Step 4: Simplify right side
    90,314.94x = 5,910,495,251.13
  5. Step 5: Solve for x
    x = 5,910,495,251.13/90,314.94
  6. Step 6: Final answer
    x = 65,443.16

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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.