Home / 61,338.24-92,020.32-19,782

Finding the Fourth Proportional to 61,338.24, 92,020.32 and 19,782

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Solution

The fourth proportional to 61,338.24, 92,020.32 and 19,782 is: 29,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,338.24 : 92,020.32 = 19,782 : x
  2. Step 2: Convert to fraction form
    61,338.24/92,020.32 = 19,782/x
  3. Step 3: Cross multiply
    61,338.24x = 92,020.32 × 19,782
  4. Step 4: Simplify right side
    61,338.24x = 1,820,345,970.24
  5. Step 5: Solve for x
    x = 1,820,345,970.24/61,338.24
  6. Step 6: Final answer
    x = 29,677.18

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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.