Home / 74,721.80-103,016.90-61,927

Finding the Fourth Proportional to 74,721.80, 103,016.90 and 61,927

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Solution

The fourth proportional to 74,721.80, 103,016.90 and 61,927 is: 85,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,721.80 : 103,016.90 = 61,927 : x
  2. Step 2: Convert to fraction form
    74,721.80/103,016.90 = 61,927/x
  3. Step 3: Cross multiply
    74,721.80x = 103,016.90 × 61,927
  4. Step 4: Simplify right side
    74,721.80x = 6,379,527,566.30
  5. Step 5: Solve for x
    x = 6,379,527,566.30/74,721.80
  6. Step 6: Final answer
    x = 85,377.06

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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.