Home / 54,209.12-74,808.57-30,340.40

Finding the Fourth Proportional to 54,209.12, 74,808.57 and 30,340.40

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Solution

The fourth proportional to 54,209.12, 74,808.57 and 30,340.40 is: 41,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,209.12 : 74,808.57 = 30,340.40 : x
  2. Step 2: Convert to fraction form
    54,209.12/74,808.57 = 30,340.40/x
  3. Step 3: Cross multiply
    54,209.12x = 74,808.57 × 30,340.40
  4. Step 4: Simplify right side
    54,209.12x = 2,269,721,676.96
  5. Step 5: Solve for x
    x = 2,269,721,676.96/54,209.12
  6. Step 6: Final answer
    x = 41,869.74

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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.