Home / 71,718.24-98,974.68-39,886.46

Finding the Fourth Proportional to 71,718.24, 98,974.68 and 39,886.46

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Solution

The fourth proportional to 71,718.24, 98,974.68 and 39,886.46 is: 55,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,718.24 : 98,974.68 = 39,886.46 : x
  2. Step 2: Convert to fraction form
    71,718.24/98,974.68 = 39,886.46/x
  3. Step 3: Cross multiply
    71,718.24x = 98,974.68 × 39,886.46
  4. Step 4: Simplify right side
    71,718.24x = 3,947,748,970.39
  5. Step 5: Solve for x
    x = 3,947,748,970.39/71,718.24
  6. Step 6: Final answer
    x = 55,045.26

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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.