Home / 55,781.78-76,971.11-32,812.65

Finding the Fourth Proportional to 55,781.78, 76,971.11 and 32,812.65

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Solution

The fourth proportional to 55,781.78, 76,971.11 and 32,812.65 is: 45,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.78 : 76,971.11 = 32,812.65 : x
  2. Step 2: Convert to fraction form
    55,781.78/76,971.11 = 32,812.65/x
  3. Step 3: Cross multiply
    55,781.78x = 76,971.11 × 32,812.65
  4. Step 4: Simplify right side
    55,781.78x = 2,525,626,092.54
  5. Step 5: Solve for x
    x = 2,525,626,092.54/55,781.78
  6. Step 6: Final answer
    x = 45,276.90

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1.5x scale

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.