Home / 51,216.66-76,772.34-19,619.28

Finding the Fourth Proportional to 51,216.66, 76,772.34 and 19,619.28

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Solution

The fourth proportional to 51,216.66, 76,772.34 and 19,619.28 is: 29,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,216.66 : 76,772.34 = 19,619.28 : x
  2. Step 2: Convert to fraction form
    51,216.66/76,772.34 = 19,619.28/x
  3. Step 3: Cross multiply
    51,216.66x = 76,772.34 × 19,619.28
  4. Step 4: Simplify right side
    51,216.66x = 1,506,218,034.72
  5. Step 5: Solve for x
    x = 1,506,218,034.72/51,216.66
  6. Step 6: Final answer
    x = 29,408.75

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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.