Home / 86,833.20-130,315.40-63,519.78

Finding the Fourth Proportional to 86,833.20, 130,315.40 and 63,519.78

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Solution

The fourth proportional to 86,833.20, 130,315.40 and 63,519.78 is: 95,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,833.20 : 130,315.40 = 63,519.78 : x
  2. Step 2: Convert to fraction form
    86,833.20/130,315.40 = 63,519.78/x
  3. Step 3: Cross multiply
    86,833.20x = 130,315.40 × 63,519.78
  4. Step 4: Simplify right side
    86,833.20x = 8,277,605,538.61
  5. Step 5: Solve for x
    x = 8,277,605,538.61/86,833.20
  6. Step 6: Final answer
    x = 95,327.66

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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.