Home / 51,631.68-77,458.92-20,466.12

Finding the Fourth Proportional to 51,631.68, 77,458.92 and 20,466.12

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Solution

The fourth proportional to 51,631.68, 77,458.92 and 20,466.12 is: 30,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.68 : 77,458.92 = 20,466.12 : x
  2. Step 2: Convert to fraction form
    51,631.68/77,458.92 = 20,466.12/x
  3. Step 3: Cross multiply
    51,631.68x = 77,458.92 × 20,466.12
  4. Step 4: Simplify right side
    51,631.68x = 1,585,283,551.79
  5. Step 5: Solve for x
    x = 1,585,283,551.79/51,631.68
  6. Step 6: Final answer
    x = 30,703.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.