Home / 99,534.14-137,358.75-54,213

Finding the Fourth Proportional to 99,534.14, 137,358.75 and 54,213

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Solution

The fourth proportional to 99,534.14, 137,358.75 and 54,213 is: 74,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,534.14 : 137,358.75 = 54,213 : x
  2. Step 2: Convert to fraction form
    99,534.14/137,358.75 = 54,213/x
  3. Step 3: Cross multiply
    99,534.14x = 137,358.75 × 54,213
  4. Step 4: Simplify right side
    99,534.14x = 7,446,629,913.75
  5. Step 5: Solve for x
    x = 7,446,629,913.75/99,534.14
  6. Step 6: Final answer
    x = 74,814.83

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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.