Home / 71,747.09-99,147.54-53,810.96

Finding the Fourth Proportional to 71,747.09, 99,147.54 and 53,810.96

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Solution

The fourth proportional to 71,747.09, 99,147.54 and 53,810.96 is: 74,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,747.09 : 99,147.54 = 53,810.96 : x
  2. Step 2: Convert to fraction form
    71,747.09/99,147.54 = 53,810.96/x
  3. Step 3: Cross multiply
    71,747.09x = 99,147.54 × 53,810.96
  4. Step 4: Simplify right side
    71,747.09x = 5,335,223,839.91
  5. Step 5: Solve for x
    x = 5,335,223,839.91/71,747.09
  6. Step 6: Final answer
    x = 74,361.53

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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.