Home / 71,720.82-98,973.24-39,454.08

Finding the Fourth Proportional to 71,720.82, 98,973.24 and 39,454.08

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Solution

The fourth proportional to 71,720.82, 98,973.24 and 39,454.08 is: 54,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,720.82 : 98,973.24 = 39,454.08 : x
  2. Step 2: Convert to fraction form
    71,720.82/98,973.24 = 39,454.08/x
  3. Step 3: Cross multiply
    71,720.82x = 98,973.24 × 39,454.08
  4. Step 4: Simplify right side
    71,720.82x = 3,904,898,128.82
  5. Step 5: Solve for x
    x = 3,904,898,128.82/71,720.82
  6. Step 6: Final answer
    x = 54,445.81

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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.