Home / 71,501.13-98,672.18-39,669.75

Finding the Fourth Proportional to 71,501.13, 98,672.18 and 39,669.75

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Solution

The fourth proportional to 71,501.13, 98,672.18 and 39,669.75 is: 54,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,501.13 : 98,672.18 = 39,669.75 : x
  2. Step 2: Convert to fraction form
    71,501.13/98,672.18 = 39,669.75/x
  3. Step 3: Cross multiply
    71,501.13x = 98,672.18 × 39,669.75
  4. Step 4: Simplify right side
    71,501.13x = 3,914,300,514.21
  5. Step 5: Solve for x
    x = 3,914,300,514.21/71,501.13
  6. Step 6: Final answer
    x = 54,744.60

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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.