Home / 71,535.09-98,716.53-39,703.17

Finding the Fourth Proportional to 71,535.09, 98,716.53 and 39,703.17

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Solution

The fourth proportional to 71,535.09, 98,716.53 and 39,703.17 is: 54,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,535.09 : 98,716.53 = 39,703.17 : x
  2. Step 2: Convert to fraction form
    71,535.09/98,716.53 = 39,703.17/x
  3. Step 3: Cross multiply
    71,535.09x = 98,716.53 × 39,703.17
  4. Step 4: Simplify right side
    71,535.09x = 3,919,359,172.40
  5. Step 5: Solve for x
    x = 3,919,359,172.40/71,535.09
  6. Step 6: Final answer
    x = 54,789.32

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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.