Home / 71,218.82-98,386.18-56,211.14

Finding the Fourth Proportional to 71,218.82, 98,386.18 and 56,211.14

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Solution

The fourth proportional to 71,218.82, 98,386.18 and 56,211.14 is: 77,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,218.82 : 98,386.18 = 56,211.14 : x
  2. Step 2: Convert to fraction form
    71,218.82/98,386.18 = 56,211.14/x
  3. Step 3: Cross multiply
    71,218.82x = 98,386.18 × 56,211.14
  4. Step 4: Simplify right side
    71,218.82x = 5,530,399,338.05
  5. Step 5: Solve for x
    x = 5,530,399,338.05/71,218.82
  6. Step 6: Final answer
    x = 77,653.62

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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.