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Finding the Fourth Proportional to 86,715.92, 130,083.48 and 34,118.48

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Solution

The fourth proportional to 86,715.92, 130,083.48 and 34,118.48 is: 51,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,715.92 : 130,083.48 = 34,118.48 : x
  2. Step 2: Convert to fraction form
    86,715.92/130,083.48 = 34,118.48/x
  3. Step 3: Cross multiply
    86,715.92x = 130,083.48 × 34,118.48
  4. Step 4: Simplify right side
    86,715.92x = 4,438,250,610.71
  5. Step 5: Solve for x
    x = 4,438,250,610.71/86,715.92
  6. Step 6: Final answer
    x = 51,181.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.