Home / 83,450.51-115,161.76-49,475.76

Finding the Fourth Proportional to 83,450.51, 115,161.76 and 49,475.76

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Solution

The fourth proportional to 83,450.51, 115,161.76 and 49,475.76 is: 68,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,450.51 : 115,161.76 = 49,475.76 : x
  2. Step 2: Convert to fraction form
    83,450.51/115,161.76 = 49,475.76/x
  3. Step 3: Cross multiply
    83,450.51x = 115,161.76 × 49,475.76
  4. Step 4: Simplify right side
    83,450.51x = 5,697,715,598.94
  5. Step 5: Solve for x
    x = 5,697,715,598.94/83,450.51
  6. Step 6: Final answer
    x = 68,276.58

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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.