Home / 86,110.07-129,172.52-23,780.57

Finding the Fourth Proportional to 86,110.07, 129,172.52 and 23,780.57

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Solution

The fourth proportional to 86,110.07, 129,172.52 and 23,780.57 is: 35,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,110.07 : 129,172.52 = 23,780.57 : x
  2. Step 2: Convert to fraction form
    86,110.07/129,172.52 = 23,780.57/x
  3. Step 3: Cross multiply
    86,110.07x = 129,172.52 × 23,780.57
  4. Step 4: Simplify right side
    86,110.07x = 3,071,795,567.53
  5. Step 5: Solve for x
    x = 3,071,795,567.53/86,110.07
  6. Step 6: Final answer
    x = 35,672.90

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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.