Home / 51,491.20-77,150.40-25,139.20

Finding the Fourth Proportional to 51,491.20, 77,150.40 and 25,139.20

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Solution

The fourth proportional to 51,491.20, 77,150.40 and 25,139.20 is: 37,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.20 : 77,150.40 = 25,139.20 : x
  2. Step 2: Convert to fraction form
    51,491.20/77,150.40 = 25,139.20/x
  3. Step 3: Cross multiply
    51,491.20x = 77,150.40 × 25,139.20
  4. Step 4: Simplify right side
    51,491.20x = 1,939,499,335.68
  5. Step 5: Solve for x
    x = 1,939,499,335.68/51,491.20
  6. Step 6: Final answer
    x = 37,666.62

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1.5x scale

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.