Home / 77,003.60-115,545.88-54,658.48

Finding the Fourth Proportional to 77,003.60, 115,545.88 and 54,658.48

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Solution

The fourth proportional to 77,003.60, 115,545.88 and 54,658.48 is: 82,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.60 : 115,545.88 = 54,658.48 : x
  2. Step 2: Convert to fraction form
    77,003.60/115,545.88 = 54,658.48/x
  3. Step 3: Cross multiply
    77,003.60x = 115,545.88 × 54,658.48
  4. Step 4: Simplify right side
    77,003.60x = 6,315,562,171.06
  5. Step 5: Solve for x
    x = 6,315,562,171.06/77,003.60
  6. Step 6: Final answer
    x = 82,016.45

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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.