Home / 84,629.16-126,756.56-34,557.42

Finding the Fourth Proportional to 84,629.16, 126,756.56 and 34,557.42

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Solution

The fourth proportional to 84,629.16, 126,756.56 and 34,557.42 is: 51,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,629.16 : 126,756.56 = 34,557.42 : x
  2. Step 2: Convert to fraction form
    84,629.16/126,756.56 = 34,557.42/x
  3. Step 3: Cross multiply
    84,629.16x = 126,756.56 × 34,557.42
  4. Step 4: Simplify right side
    84,629.16x = 4,380,379,681.68
  5. Step 5: Solve for x
    x = 4,380,379,681.68/84,629.16
  6. Step 6: Final answer
    x = 51,759.70

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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.