Home / 71,939.16-99,277.27-39,677.48

Finding the Fourth Proportional to 71,939.16, 99,277.27 and 39,677.48

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Solution

The fourth proportional to 71,939.16, 99,277.27 and 39,677.48 is: 54,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,939.16 : 99,277.27 = 39,677.48 : x
  2. Step 2: Convert to fraction form
    71,939.16/99,277.27 = 39,677.48/x
  3. Step 3: Cross multiply
    71,939.16x = 99,277.27 × 39,677.48
  4. Step 4: Simplify right side
    71,939.16x = 3,939,071,745.88
  5. Step 5: Solve for x
    x = 3,939,071,745.88/71,939.16
  6. Step 6: Final answer
    x = 54,755.60

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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.