Home / 86,186.11-129,166.86-44,030.66

Finding the Fourth Proportional to 86,186.11, 129,166.86 and 44,030.66

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Solution

The fourth proportional to 86,186.11, 129,166.86 and 44,030.66 is: 65,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.11 : 129,166.86 = 44,030.66 : x
  2. Step 2: Convert to fraction form
    86,186.11/129,166.86 = 44,030.66/x
  3. Step 3: Cross multiply
    86,186.11x = 129,166.86 × 44,030.66
  4. Step 4: Simplify right side
    86,186.11x = 5,687,302,095.93
  5. Step 5: Solve for x
    x = 5,687,302,095.93/86,186.11
  6. Step 6: Final answer
    x = 65,988.62

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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.