Home / 55,728.18-83,590.92-13,608.54

Finding the Fourth Proportional to 55,728.18, 83,590.92 and 13,608.54

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Solution

The fourth proportional to 55,728.18, 83,590.92 and 13,608.54 is: 20,412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.18 : 83,590.92 = 13,608.54 : x
  2. Step 2: Convert to fraction form
    55,728.18/83,590.92 = 13,608.54/x
  3. Step 3: Cross multiply
    55,728.18x = 83,590.92 × 13,608.54
  4. Step 4: Simplify right side
    55,728.18x = 1,137,550,378.46
  5. Step 5: Solve for x
    x = 1,137,550,378.46/55,728.18
  6. Step 6: Final answer
    x = 20,412.48

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1.5x scale

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.