Home / 61,721.24-85,141.21-50,248.50

Finding the Fourth Proportional to 61,721.24, 85,141.21 and 50,248.50

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Solution

The fourth proportional to 61,721.24, 85,141.21 and 50,248.50 is: 69,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,721.24 : 85,141.21 = 50,248.50 : x
  2. Step 2: Convert to fraction form
    61,721.24/85,141.21 = 50,248.50/x
  3. Step 3: Cross multiply
    61,721.24x = 85,141.21 × 50,248.50
  4. Step 4: Simplify right side
    61,721.24x = 4,278,217,413.74
  5. Step 5: Solve for x
    x = 4,278,217,413.74/61,721.24
  6. Step 6: Final answer
    x = 69,315.16

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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.