Home / 65,948.88-98,935.47-21,578.12

Finding the Fourth Proportional to 65,948.88, 98,935.47 and 21,578.12

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Solution

The fourth proportional to 65,948.88, 98,935.47 and 21,578.12 is: 32,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,948.88 : 98,935.47 = 21,578.12 : x
  2. Step 2: Convert to fraction form
    65,948.88/98,935.47 = 21,578.12/x
  3. Step 3: Cross multiply
    65,948.88x = 98,935.47 × 21,578.12
  4. Step 4: Simplify right side
    65,948.88x = 2,134,840,949.24
  5. Step 5: Solve for x
    x = 2,134,840,949.24/65,948.88
  6. Step 6: Final answer
    x = 32,371.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.