Home / 74,605.24-102,922.53-49,078.76

Finding the Fourth Proportional to 74,605.24, 102,922.53 and 49,078.76

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Solution

The fourth proportional to 74,605.24, 102,922.53 and 49,078.76 is: 67,707.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,605.24 : 102,922.53 = 49,078.76 : x
  2. Step 2: Convert to fraction form
    74,605.24/102,922.53 = 49,078.76/x
  3. Step 3: Cross multiply
    74,605.24x = 102,922.53 × 49,078.76
  4. Step 4: Simplify right side
    74,605.24x = 5,051,310,148.46
  5. Step 5: Solve for x
    x = 5,051,310,148.46/74,605.24
  6. Step 6: Final answer
    x = 67,707.18

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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.