Home / 51,491.30-77,252.56-21,520.08

Finding the Fourth Proportional to 51,491.30, 77,252.56 and 21,520.08

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Solution

The fourth proportional to 51,491.30, 77,252.56 and 21,520.08 is: 32,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.30 : 77,252.56 = 21,520.08 : x
  2. Step 2: Convert to fraction form
    51,491.30/77,252.56 = 21,520.08/x
  3. Step 3: Cross multiply
    51,491.30x = 77,252.56 × 21,520.08
  4. Step 4: Simplify right side
    51,491.30x = 1,662,481,271.40
  5. Step 5: Solve for x
    x = 1,662,481,271.40/51,491.30
  6. Step 6: Final answer
    x = 32,286.64

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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.