Home / 99,757.96-137,661.70-54,434.81

Finding the Fourth Proportional to 99,757.96, 137,661.70 and 54,434.81

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Solution

The fourth proportional to 99,757.96, 137,661.70 and 54,434.81 is: 75,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,757.96 : 137,661.70 = 54,434.81 : x
  2. Step 2: Convert to fraction form
    99,757.96/137,661.70 = 54,434.81/x
  3. Step 3: Cross multiply
    99,757.96x = 137,661.70 × 54,434.81
  4. Step 4: Simplify right side
    99,757.96x = 7,493,588,691.84
  5. Step 5: Solve for x
    x = 7,493,588,691.84/99,757.96
  6. Step 6: Final answer
    x = 75,117.70

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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.