Home / 81,592.25-112,605.39-54,790.56

Finding the Fourth Proportional to 81,592.25, 112,605.39 and 54,790.56

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Solution

The fourth proportional to 81,592.25, 112,605.39 and 54,790.56 is: 75,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,592.25 : 112,605.39 = 54,790.56 : x
  2. Step 2: Convert to fraction form
    81,592.25/112,605.39 = 54,790.56/x
  3. Step 3: Cross multiply
    81,592.25x = 112,605.39 × 54,790.56
  4. Step 4: Simplify right side
    81,592.25x = 6,169,712,377.12
  5. Step 5: Solve for x
    x = 6,169,712,377.12/81,592.25
  6. Step 6: Final answer
    x = 75,616.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.