Home / 71,523.09-98,699.99-39,691.17

Finding the Fourth Proportional to 71,523.09, 98,699.99 and 39,691.17

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Solution

The fourth proportional to 71,523.09, 98,699.99 and 39,691.17 is: 54,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,523.09 : 98,699.99 = 39,691.17 : x
  2. Step 2: Convert to fraction form
    71,523.09/98,699.99 = 39,691.17/x
  3. Step 3: Cross multiply
    71,523.09x = 98,699.99 × 39,691.17
  4. Step 4: Simplify right side
    71,523.09x = 3,917,517,883.63
  5. Step 5: Solve for x
    x = 3,917,517,883.63/71,523.09
  6. Step 6: Final answer
    x = 54,772.77

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1.5x scale

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.