Home / 99,542.93-137,372.76-54,221.81

Finding the Fourth Proportional to 99,542.93, 137,372.76 and 54,221.81

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Solution

The fourth proportional to 99,542.93, 137,372.76 and 54,221.81 is: 74,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,542.93 : 137,372.76 = 54,221.81 : x
  2. Step 2: Convert to fraction form
    99,542.93/137,372.76 = 54,221.81/x
  3. Step 3: Cross multiply
    99,542.93x = 137,372.76 × 54,221.81
  4. Step 4: Simplify right side
    99,542.93x = 7,448,599,005.03
  5. Step 5: Solve for x
    x = 7,448,599,005.03/99,542.93
  6. Step 6: Final answer
    x = 74,828.01

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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.