Home / 54,139.68-74,713.29-30,267.66

Finding the Fourth Proportional to 54,139.68, 74,713.29 and 30,267.66

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Solution

The fourth proportional to 54,139.68, 74,713.29 and 30,267.66 is: 41,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.68 : 74,713.29 = 30,267.66 : x
  2. Step 2: Convert to fraction form
    54,139.68/74,713.29 = 30,267.66/x
  3. Step 3: Cross multiply
    54,139.68x = 74,713.29 × 30,267.66
  4. Step 4: Simplify right side
    54,139.68x = 2,261,396,459.20
  5. Step 5: Solve for x
    x = 2,261,396,459.20/54,139.68
  6. Step 6: Final answer
    x = 41,769.67

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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.