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Finding the Fourth Proportional to 86,769.31, 130,166.31 and 26,802.88

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Solution

The fourth proportional to 86,769.31, 130,166.31 and 26,802.88 is: 40,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,769.31 : 130,166.31 = 26,802.88 : x
  2. Step 2: Convert to fraction form
    86,769.31/130,166.31 = 26,802.88/x
  3. Step 3: Cross multiply
    86,769.31x = 130,166.31 × 26,802.88
  4. Step 4: Simplify right side
    86,769.31x = 3,488,832,125.46
  5. Step 5: Solve for x
    x = 3,488,832,125.46/86,769.31
  6. Step 6: Final answer
    x = 40,208.13

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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.