Home / 71,495.38-98,663.75-39,664.29

Finding the Fourth Proportional to 71,495.38, 98,663.75 and 39,664.29

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Solution

The fourth proportional to 71,495.38, 98,663.75 and 39,664.29 is: 54,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,495.38 : 98,663.75 = 39,664.29 : x
  2. Step 2: Convert to fraction form
    71,495.38/98,663.75 = 39,664.29/x
  3. Step 3: Cross multiply
    71,495.38x = 98,663.75 × 39,664.29
  4. Step 4: Simplify right side
    71,495.38x = 3,913,427,592.49
  5. Step 5: Solve for x
    x = 3,913,427,592.49/71,495.38
  6. Step 6: Final answer
    x = 54,736.79

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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.