Home / 86,186.22-129,247.33-30,011.91

Finding the Fourth Proportional to 86,186.22, 129,247.33 and 30,011.91

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Solution

The fourth proportional to 86,186.22, 129,247.33 and 30,011.91 is: 45,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.22 : 129,247.33 = 30,011.91 : x
  2. Step 2: Convert to fraction form
    86,186.22/129,247.33 = 30,011.91/x
  3. Step 3: Cross multiply
    86,186.22x = 129,247.33 × 30,011.91
  4. Step 4: Simplify right side
    86,186.22x = 3,878,959,235.70
  5. Step 5: Solve for x
    x = 3,878,959,235.70/86,186.22
  6. Step 6: Final answer
    x = 45,006.72

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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.