Home / 51,260.20-76,890.30-38,138.20

Finding the Fourth Proportional to 51,260.20, 76,890.30 and 38,138.20

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Solution

The fourth proportional to 51,260.20, 76,890.30 and 38,138.20 is: 57,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,260.20 : 76,890.30 = 38,138.20 : x
  2. Step 2: Convert to fraction form
    51,260.20/76,890.30 = 38,138.20/x
  3. Step 3: Cross multiply
    51,260.20x = 76,890.30 × 38,138.20
  4. Step 4: Simplify right side
    51,260.20x = 2,932,457,639.46
  5. Step 5: Solve for x
    x = 2,932,457,639.46/51,260.20
  6. Step 6: Final answer
    x = 57,207.30

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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.