Home / 99,829.80-137,764.08-54,507.64

Finding the Fourth Proportional to 99,829.80, 137,764.08 and 54,507.64

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Solution

The fourth proportional to 99,829.80, 137,764.08 and 54,507.64 is: 75,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.80 : 137,764.08 = 54,507.64 : x
  2. Step 2: Convert to fraction form
    99,829.80/137,764.08 = 54,507.64/x
  3. Step 3: Cross multiply
    99,829.80x = 137,764.08 × 54,507.64
  4. Step 4: Simplify right side
    99,829.80x = 7,509,194,877.57
  5. Step 5: Solve for x
    x = 7,509,194,877.57/99,829.80
  6. Step 6: Final answer
    x = 75,219.97

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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.