Home / 54,309.11-74,949.53-30,443.45

Finding the Fourth Proportional to 54,309.11, 74,949.53 and 30,443.45

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Solution

The fourth proportional to 54,309.11, 74,949.53 and 30,443.45 is: 42,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,309.11 : 74,949.53 = 30,443.45 : x
  2. Step 2: Convert to fraction form
    54,309.11/74,949.53 = 30,443.45/x
  3. Step 3: Cross multiply
    54,309.11x = 74,949.53 × 30,443.45
  4. Step 4: Simplify right side
    54,309.11x = 2,281,721,742.11
  5. Step 5: Solve for x
    x = 2,281,721,742.11/54,309.11
  6. Step 6: Final answer
    x = 42,013.61

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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.