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Finding the Fourth Proportional to 55,344, 76,376.34 and 30,195.12

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Solution

The fourth proportional to 55,344, 76,376.34 and 30,195.12 is: 41,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,344 : 76,376.34 = 30,195.12 : x
  2. Step 2: Convert to fraction form
    55,344/76,376.34 = 30,195.12/x
  3. Step 3: Cross multiply
    55,344x = 76,376.34 × 30,195.12
  4. Step 4: Simplify right side
    55,344x = 2,306,192,751.46
  5. Step 5: Solve for x
    x = 2,306,192,751.46/55,344
  6. Step 6: Final answer
    x = 41,670.15

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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.