Home / 55,571.07-83,314.69-18,108.78

Finding the Fourth Proportional to 55,571.07, 83,314.69 and 18,108.78

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Solution

The fourth proportional to 55,571.07, 83,314.69 and 18,108.78 is: 27,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.07 : 83,314.69 = 18,108.78 : x
  2. Step 2: Convert to fraction form
    55,571.07/83,314.69 = 18,108.78/x
  3. Step 3: Cross multiply
    55,571.07x = 83,314.69 × 18,108.78
  4. Step 4: Simplify right side
    55,571.07x = 1,508,727,034.28
  5. Step 5: Solve for x
    x = 1,508,727,034.28/55,571.07
  6. Step 6: Final answer
    x = 27,149.50

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1.5x scale

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.