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Finding the Fourth Proportional to 84,230.80, 126,345 and 25,066.78

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Solution

The fourth proportional to 84,230.80, 126,345 and 25,066.78 is: 37,599.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,230.80 : 126,345 = 25,066.78 : x
  2. Step 2: Convert to fraction form
    84,230.80/126,345 = 25,066.78/x
  3. Step 3: Cross multiply
    84,230.80x = 126,345 × 25,066.78
  4. Step 4: Simplify right side
    84,230.80x = 3,167,062,319.10
  5. Step 5: Solve for x
    x = 3,167,062,319.10/84,230.80
  6. Step 6: Final answer
    x = 37,599.81

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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.