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Finding the Fourth Proportional to 72,392.38, 108,440.74 and 37,258.22

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Solution

The fourth proportional to 72,392.38, 108,440.74 and 37,258.22 is: 55,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,392.38 : 108,440.74 = 37,258.22 : x
  2. Step 2: Convert to fraction form
    72,392.38/108,440.74 = 37,258.22/x
  3. Step 3: Cross multiply
    72,392.38x = 108,440.74 × 37,258.22
  4. Step 4: Simplify right side
    72,392.38x = 4,040,309,218.98
  5. Step 5: Solve for x
    x = 4,040,309,218.98/72,392.38
  6. Step 6: Final answer
    x = 55,811.25

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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.