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Finding the Fourth Proportional to 86,147.48, 118,866.17 and 50,330.57

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Solution

The fourth proportional to 86,147.48, 118,866.17 and 50,330.57 is: 69,446.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,147.48 : 118,866.17 = 50,330.57 : x
  2. Step 2: Convert to fraction form
    86,147.48/118,866.17 = 50,330.57/x
  3. Step 3: Cross multiply
    86,147.48x = 118,866.17 × 50,330.57
  4. Step 4: Simplify right side
    86,147.48x = 5,982,601,621.31
  5. Step 5: Solve for x
    x = 5,982,601,621.31/86,147.48
  6. Step 6: Final answer
    x = 69,446.04

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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.