Home / 86,281.44-129,330-61,582.56

Finding the Fourth Proportional to 86,281.44, 129,330 and 61,582.56

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Solution

The fourth proportional to 86,281.44, 129,330 and 61,582.56 is: 92,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,281.44 : 129,330 = 61,582.56 : x
  2. Step 2: Convert to fraction form
    86,281.44/129,330 = 61,582.56/x
  3. Step 3: Cross multiply
    86,281.44x = 129,330 × 61,582.56
  4. Step 4: Simplify right side
    86,281.44x = 7,964,472,484.80
  5. Step 5: Solve for x
    x = 7,964,472,484.80/86,281.44
  6. Step 6: Final answer
    x = 92,308.06

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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.