Home / 76,721.23-115,081.57-34,551.93

Finding the Fourth Proportional to 76,721.23, 115,081.57 and 34,551.93

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Solution

The fourth proportional to 76,721.23, 115,081.57 and 34,551.93 is: 51,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,721.23 : 115,081.57 = 34,551.93 : x
  2. Step 2: Convert to fraction form
    76,721.23/115,081.57 = 34,551.93/x
  3. Step 3: Cross multiply
    76,721.23x = 115,081.57 × 34,551.93
  4. Step 4: Simplify right side
    76,721.23x = 3,976,290,350.93
  5. Step 5: Solve for x
    x = 3,976,290,350.93/76,721.23
  6. Step 6: Final answer
    x = 51,827.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.