Home / 65,581.11-98,377.07-21,214.98

Finding the Fourth Proportional to 65,581.11, 98,377.07 and 21,214.98

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Solution

The fourth proportional to 65,581.11, 98,377.07 and 21,214.98 is: 31,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,581.11 : 98,377.07 = 21,214.98 : x
  2. Step 2: Convert to fraction form
    65,581.11/98,377.07 = 21,214.98/x
  3. Step 3: Cross multiply
    65,581.11x = 98,377.07 × 21,214.98
  4. Step 4: Simplify right side
    65,581.11x = 2,087,067,466.43
  5. Step 5: Solve for x
    x = 2,087,067,466.43/65,581.11
  6. Step 6: Final answer
    x = 31,824.22

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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.