Home / 54,215.75-74,818.11-30,344.63

Finding the Fourth Proportional to 54,215.75, 74,818.11 and 30,344.63

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Solution

The fourth proportional to 54,215.75, 74,818.11 and 30,344.63 is: 41,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.75 : 74,818.11 = 30,344.63 : x
  2. Step 2: Convert to fraction form
    54,215.75/74,818.11 = 30,344.63/x
  3. Step 3: Cross multiply
    54,215.75x = 74,818.11 × 30,344.63
  4. Step 4: Simplify right side
    54,215.75x = 2,270,327,865.25
  5. Step 5: Solve for x
    x = 2,270,327,865.25/54,215.75
  6. Step 6: Final answer
    x = 41,875.80

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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.