Home / 40,255.56-55,608.72-38,287.32

Finding the Fourth Proportional to 40,255.56, 55,608.72 and 38,287.32

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Solution

The fourth proportional to 40,255.56, 55,608.72 and 38,287.32 is: 52,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,255.56 : 55,608.72 = 38,287.32 : x
  2. Step 2: Convert to fraction form
    40,255.56/55,608.72 = 38,287.32/x
  3. Step 3: Cross multiply
    40,255.56x = 55,608.72 × 38,287.32
  4. Step 4: Simplify right side
    40,255.56x = 2,129,108,857.43
  5. Step 5: Solve for x
    x = 2,129,108,857.43/40,255.56
  6. Step 6: Final answer
    x = 52,889.81

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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.