Home / 86,418.78-129,304.98-61,516.14

Finding the Fourth Proportional to 86,418.78, 129,304.98 and 61,516.14

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Solution

The fourth proportional to 86,418.78, 129,304.98 and 61,516.14 is: 92,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.78 : 129,304.98 = 61,516.14 : x
  2. Step 2: Convert to fraction form
    86,418.78/129,304.98 = 61,516.14/x
  3. Step 3: Cross multiply
    86,418.78x = 129,304.98 × 61,516.14
  4. Step 4: Simplify right side
    86,418.78x = 7,954,343,252.38
  5. Step 5: Solve for x
    x = 7,954,343,252.38/86,418.78
  6. Step 6: Final answer
    x = 92,044.15

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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.