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Finding the Fourth Proportional to 86,357.52, 119,046.24 and 68,458.32

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Solution

The fourth proportional to 86,357.52, 119,046.24 and 68,458.32 is: 94,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,357.52 : 119,046.24 = 68,458.32 : x
  2. Step 2: Convert to fraction form
    86,357.52/119,046.24 = 68,458.32/x
  3. Step 3: Cross multiply
    86,357.52x = 119,046.24 × 68,458.32
  4. Step 4: Simplify right side
    86,357.52x = 8,149,705,592.72
  5. Step 5: Solve for x
    x = 8,149,705,592.72/86,357.52
  6. Step 6: Final answer
    x = 94,371.70

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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.