Home / 55,707.20-83,565.66-20,647.16

Finding the Fourth Proportional to 55,707.20, 83,565.66 and 20,647.16

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Solution

The fourth proportional to 55,707.20, 83,565.66 and 20,647.16 is: 30,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,707.20 : 83,565.66 = 20,647.16 : x
  2. Step 2: Convert to fraction form
    55,707.20/83,565.66 = 20,647.16/x
  3. Step 3: Cross multiply
    55,707.20x = 83,565.66 × 20,647.16
  4. Step 4: Simplify right side
    55,707.20x = 1,725,393,552.53
  5. Step 5: Solve for x
    x = 1,725,393,552.53/55,707.20
  6. Step 6: Final answer
    x = 30,972.54

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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.