Home / 86,781.65-119,757.09-49,055.90

Finding the Fourth Proportional to 86,781.65, 119,757.09 and 49,055.90

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Solution

The fourth proportional to 86,781.65, 119,757.09 and 49,055.90 is: 67,696.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,781.65 : 119,757.09 = 49,055.90 : x
  2. Step 2: Convert to fraction form
    86,781.65/119,757.09 = 49,055.90/x
  3. Step 3: Cross multiply
    86,781.65x = 119,757.09 × 49,055.90
  4. Step 4: Simplify right side
    86,781.65x = 5,874,791,831.33
  5. Step 5: Solve for x
    x = 5,874,791,831.33/86,781.65
  6. Step 6: Final answer
    x = 67,696.24

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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.