Home / 55,290.42-75,769.47-49,976.28

Finding the Fourth Proportional to 55,290.42, 75,769.47 and 49,976.28

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Solution

The fourth proportional to 55,290.42, 75,769.47 and 49,976.28 is: 68,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.42 : 75,769.47 = 49,976.28 : x
  2. Step 2: Convert to fraction form
    55,290.42/75,769.47 = 49,976.28/x
  3. Step 3: Cross multiply
    55,290.42x = 75,769.47 × 49,976.28
  4. Step 4: Simplify right side
    55,290.42x = 3,786,676,248.17
  5. Step 5: Solve for x
    x = 3,786,676,248.17/55,290.42
  6. Step 6: Final answer
    x = 68,487.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.