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Finding the Fourth Proportional to 86,691.60, 119,628.54 and 48,963.42

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Solution

The fourth proportional to 86,691.60, 119,628.54 and 48,963.42 is: 67,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,691.60 : 119,628.54 = 48,963.42 : x
  2. Step 2: Convert to fraction form
    86,691.60/119,628.54 = 48,963.42/x
  3. Step 3: Cross multiply
    86,691.60x = 119,628.54 × 48,963.42
  4. Step 4: Simplify right side
    86,691.60x = 5,857,422,448.01
  5. Step 5: Solve for x
    x = 5,857,422,448.01/86,691.60
  6. Step 6: Final answer
    x = 67,566.21

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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.