Home / 86,511.68-129,818.76-36,589.04

Finding the Fourth Proportional to 86,511.68, 129,818.76 and 36,589.04

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Solution

The fourth proportional to 86,511.68, 129,818.76 and 36,589.04 is: 54,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,511.68 : 129,818.76 = 36,589.04 : x
  2. Step 2: Convert to fraction form
    86,511.68/129,818.76 = 36,589.04/x
  3. Step 3: Cross multiply
    86,511.68x = 129,818.76 × 36,589.04
  4. Step 4: Simplify right side
    86,511.68x = 4,749,943,802.39
  5. Step 5: Solve for x
    x = 4,749,943,802.39/86,511.68
  6. Step 6: Final answer
    x = 54,905.23

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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.