Home / 77,209.13-106,543.67-43,211.90

Finding the Fourth Proportional to 77,209.13, 106,543.67 and 43,211.90

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Solution

The fourth proportional to 77,209.13, 106,543.67 and 43,211.90 is: 59,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,209.13 : 106,543.67 = 43,211.90 : x
  2. Step 2: Convert to fraction form
    77,209.13/106,543.67 = 43,211.90/x
  3. Step 3: Cross multiply
    77,209.13x = 106,543.67 × 43,211.90
  4. Step 4: Simplify right side
    77,209.13x = 4,603,954,107.73
  5. Step 5: Solve for x
    x = 4,603,954,107.73/77,209.13
  6. Step 6: Final answer
    x = 59,629.66

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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.