Home / 77,180.87-106,515.32-43,192.76

Finding the Fourth Proportional to 77,180.87, 106,515.32 and 43,192.76

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Solution

The fourth proportional to 77,180.87, 106,515.32 and 43,192.76 is: 59,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,180.87 : 106,515.32 = 43,192.76 : x
  2. Step 2: Convert to fraction form
    77,180.87/106,515.32 = 43,192.76/x
  3. Step 3: Cross multiply
    77,180.87x = 106,515.32 × 43,192.76
  4. Step 4: Simplify right side
    77,180.87x = 4,600,689,904.54
  5. Step 5: Solve for x
    x = 4,600,689,904.54/77,180.87
  6. Step 6: Final answer
    x = 59,609.20

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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.