Home / 115,679.20-173,432.40-49,064.80

Finding the Fourth Proportional to 115,679.20, 173,432.40 and 49,064.80

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Solution

The fourth proportional to 115,679.20, 173,432.40 and 49,064.80 is: 73,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,679.20 : 173,432.40 = 49,064.80 : x
  2. Step 2: Convert to fraction form
    115,679.20/173,432.40 = 49,064.80/x
  3. Step 3: Cross multiply
    115,679.20x = 173,432.40 × 49,064.80
  4. Step 4: Simplify right side
    115,679.20x = 8,509,426,019.52
  5. Step 5: Solve for x
    x = 8,509,426,019.52/115,679.20
  6. Step 6: Final answer
    x = 73,560.55

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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.