Home / 65,545.20-98,328.96-21,166.56

Finding the Fourth Proportional to 65,545.20, 98,328.96 and 21,166.56

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Solution

The fourth proportional to 65,545.20, 98,328.96 and 21,166.56 is: 31,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,545.20 : 98,328.96 = 21,166.56 : x
  2. Step 2: Convert to fraction form
    65,545.20/98,328.96 = 21,166.56/x
  3. Step 3: Cross multiply
    65,545.20x = 98,328.96 × 21,166.56
  4. Step 4: Simplify right side
    65,545.20x = 2,081,285,831.58
  5. Step 5: Solve for x
    x = 2,081,285,831.58/65,545.20
  6. Step 6: Final answer
    x = 31,753.44

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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.