Home / 61,821.82-92,731.70-19,701.32

Finding the Fourth Proportional to 61,821.82, 92,731.70 and 19,701.32

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Solution

The fourth proportional to 61,821.82, 92,731.70 and 19,701.32 is: 29,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,821.82 : 92,731.70 = 19,701.32 : x
  2. Step 2: Convert to fraction form
    61,821.82/92,731.70 = 19,701.32/x
  3. Step 3: Cross multiply
    61,821.82x = 92,731.70 × 19,701.32
  4. Step 4: Simplify right side
    61,821.82x = 1,826,936,895.84
  5. Step 5: Solve for x
    x = 1,826,936,895.84/61,821.82
  6. Step 6: Final answer
    x = 29,551.65

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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.