Home / 77,328.92-106,721.40-43,343.18

Finding the Fourth Proportional to 77,328.92, 106,721.40 and 43,343.18

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Solution

The fourth proportional to 77,328.92, 106,721.40 and 43,343.18 is: 59,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,328.92 : 106,721.40 = 43,343.18 : x
  2. Step 2: Convert to fraction form
    77,328.92/106,721.40 = 43,343.18/x
  3. Step 3: Cross multiply
    77,328.92x = 106,721.40 × 43,343.18
  4. Step 4: Simplify right side
    77,328.92x = 4,625,644,850.05
  5. Step 5: Solve for x
    x = 4,625,644,850.05/77,328.92
  6. Step 6: Final answer
    x = 59,817.79

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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.