Home / 99,007.20-136,629.78-54,295.20

Finding the Fourth Proportional to 99,007.20, 136,629.78 and 54,295.20

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Solution

The fourth proportional to 99,007.20, 136,629.78 and 54,295.20 is: 74,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,007.20 : 136,629.78 = 54,295.20 : x
  2. Step 2: Convert to fraction form
    99,007.20/136,629.78 = 54,295.20/x
  3. Step 3: Cross multiply
    99,007.20x = 136,629.78 × 54,295.20
  4. Step 4: Simplify right side
    99,007.20x = 7,418,341,231.06
  5. Step 5: Solve for x
    x = 7,418,341,231.06/99,007.20
  6. Step 6: Final answer
    x = 74,927.29

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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.