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Finding the Fourth Proportional to 86,960.97, 130,204.29 and 65,837.10

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Solution

The fourth proportional to 86,960.97, 130,204.29 and 65,837.10 is: 98,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.97 : 130,204.29 = 65,837.10 : x
  2. Step 2: Convert to fraction form
    86,960.97/130,204.29 = 65,837.10/x
  3. Step 3: Cross multiply
    86,960.97x = 130,204.29 × 65,837.10
  4. Step 4: Simplify right side
    86,960.97x = 8,572,272,861.16
  5. Step 5: Solve for x
    x = 8,572,272,861.16/86,960.97
  6. Step 6: Final answer
    x = 98,576.10

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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.