Home / 99,479.03-137,278.46-54,157.91

Finding the Fourth Proportional to 99,479.03, 137,278.46 and 54,157.91

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Solution

The fourth proportional to 99,479.03, 137,278.46 and 54,157.91 is: 74,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,479.03 : 137,278.46 = 54,157.91 : x
  2. Step 2: Convert to fraction form
    99,479.03/137,278.46 = 54,157.91/x
  3. Step 3: Cross multiply
    99,479.03x = 137,278.46 × 54,157.91
  4. Step 4: Simplify right side
    99,479.03x = 7,434,713,930.62
  5. Step 5: Solve for x
    x = 7,434,713,930.62/99,479.03
  6. Step 6: Final answer
    x = 74,736.50

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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.