Home / 86,199.28-129,307.92-23,869.78

Finding the Fourth Proportional to 86,199.28, 129,307.92 and 23,869.78

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Solution

The fourth proportional to 86,199.28, 129,307.92 and 23,869.78 is: 35,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,199.28 : 129,307.92 = 23,869.78 : x
  2. Step 2: Convert to fraction form
    86,199.28/129,307.92 = 23,869.78/x
  3. Step 3: Cross multiply
    86,199.28x = 129,307.92 × 23,869.78
  4. Step 4: Simplify right side
    86,199.28x = 3,086,551,602.66
  5. Step 5: Solve for x
    x = 3,086,551,602.66/86,199.28
  6. Step 6: Final answer
    x = 35,807.16

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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.