Home / 99,429.45-137,215.53-54,110.36

Finding the Fourth Proportional to 99,429.45, 137,215.53 and 54,110.36

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Solution

The fourth proportional to 99,429.45, 137,215.53 and 54,110.36 is: 74,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,429.45 : 137,215.53 = 54,110.36 : x
  2. Step 2: Convert to fraction form
    99,429.45/137,215.53 = 54,110.36/x
  3. Step 3: Cross multiply
    99,429.45x = 137,215.53 × 54,110.36
  4. Step 4: Simplify right side
    99,429.45x = 7,424,781,725.89
  5. Step 5: Solve for x
    x = 7,424,781,725.89/99,429.45
  6. Step 6: Final answer
    x = 74,673.87

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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.