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Finding the Fourth Proportional to 86,451.56, 119,306.49 and 48,725

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Solution

The fourth proportional to 86,451.56, 119,306.49 and 48,725 is: 67,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,451.56 : 119,306.49 = 48,725 : x
  2. Step 2: Convert to fraction form
    86,451.56/119,306.49 = 48,725/x
  3. Step 3: Cross multiply
    86,451.56x = 119,306.49 × 48,725
  4. Step 4: Simplify right side
    86,451.56x = 5,813,208,725.25
  5. Step 5: Solve for x
    x = 5,813,208,725.25/86,451.56
  6. Step 6: Final answer
    x = 67,242.38

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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.