Home / 54,175.42-74,765.98-30,309.78

Finding the Fourth Proportional to 54,175.42, 74,765.98 and 30,309.78

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Solution

The fourth proportional to 54,175.42, 74,765.98 and 30,309.78 is: 41,829.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,175.42 : 74,765.98 = 30,309.78 : x
  2. Step 2: Convert to fraction form
    54,175.42/74,765.98 = 30,309.78/x
  3. Step 3: Cross multiply
    54,175.42x = 74,765.98 × 30,309.78
  4. Step 4: Simplify right side
    54,175.42x = 2,266,140,405.28
  5. Step 5: Solve for x
    x = 2,266,140,405.28/54,175.42
  6. Step 6: Final answer
    x = 41,829.68

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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.