Home / 51,429.47-77,144.21-21,826.55

Finding the Fourth Proportional to 51,429.47, 77,144.21 and 21,826.55

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Solution

The fourth proportional to 51,429.47, 77,144.21 and 21,826.55 is: 32,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,429.47 : 77,144.21 = 21,826.55 : x
  2. Step 2: Convert to fraction form
    51,429.47/77,144.21 = 21,826.55/x
  3. Step 3: Cross multiply
    51,429.47x = 77,144.21 × 21,826.55
  4. Step 4: Simplify right side
    51,429.47x = 1,683,791,956.78
  5. Step 5: Solve for x
    x = 1,683,791,956.78/51,429.47
  6. Step 6: Final answer
    x = 32,739.83

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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.