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Finding the Fourth Proportional to 84,773.52, 127,174.32 and 28,618.92

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Solution

The fourth proportional to 84,773.52, 127,174.32 and 28,618.92 is: 42,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,773.52 : 127,174.32 = 28,618.92 : x
  2. Step 2: Convert to fraction form
    84,773.52/127,174.32 = 28,618.92/x
  3. Step 3: Cross multiply
    84,773.52x = 127,174.32 × 28,618.92
  4. Step 4: Simplify right side
    84,773.52x = 3,639,591,690.13
  5. Step 5: Solve for x
    x = 3,639,591,690.13/84,773.52
  6. Step 6: Final answer
    x = 42,933.12

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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.