Home / 77,746.44-116,545.78-30,391.90

Finding the Fourth Proportional to 77,746.44, 116,545.78 and 30,391.90

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Solution

The fourth proportional to 77,746.44, 116,545.78 and 30,391.90 is: 45,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,746.44 : 116,545.78 = 30,391.90 : x
  2. Step 2: Convert to fraction form
    77,746.44/116,545.78 = 30,391.90/x
  3. Step 3: Cross multiply
    77,746.44x = 116,545.78 × 30,391.90
  4. Step 4: Simplify right side
    77,746.44x = 3,542,047,691.18
  5. Step 5: Solve for x
    x = 3,542,047,691.18/77,746.44
  6. Step 6: Final answer
    x = 45,558.97

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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.