Home / 71,699.80-98,941.66-39,868.02

Finding the Fourth Proportional to 71,699.80, 98,941.66 and 39,868.02

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Solution

The fourth proportional to 71,699.80, 98,941.66 and 39,868.02 is: 55,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,699.80 : 98,941.66 = 39,868.02 : x
  2. Step 2: Convert to fraction form
    71,699.80/98,941.66 = 39,868.02/x
  3. Step 3: Cross multiply
    71,699.80x = 98,941.66 × 39,868.02
  4. Step 4: Simplify right side
    71,699.80x = 3,944,608,079.71
  5. Step 5: Solve for x
    x = 3,944,608,079.71/71,699.80
  6. Step 6: Final answer
    x = 55,015.61

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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.