Home / 55,128.96-75,922.56-54,956.16

Finding the Fourth Proportional to 55,128.96, 75,922.56 and 54,956.16

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Solution

The fourth proportional to 55,128.96, 75,922.56 and 54,956.16 is: 75,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.96 : 75,922.56 = 54,956.16 : x
  2. Step 2: Convert to fraction form
    55,128.96/75,922.56 = 54,956.16/x
  3. Step 3: Cross multiply
    55,128.96x = 75,922.56 × 54,956.16
  4. Step 4: Simplify right side
    55,128.96x = 4,172,412,354.97
  5. Step 5: Solve for x
    x = 4,172,412,354.97/55,128.96
  6. Step 6: Final answer
    x = 75,684.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.