Home / 51,253.20-76,856.70-21,655.80

Finding the Fourth Proportional to 51,253.20, 76,856.70 and 21,655.80

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Solution

The fourth proportional to 51,253.20, 76,856.70 and 21,655.80 is: 32,473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,253.20 : 76,856.70 = 21,655.80 : x
  2. Step 2: Convert to fraction form
    51,253.20/76,856.70 = 21,655.80/x
  3. Step 3: Cross multiply
    51,253.20x = 76,856.70 × 21,655.80
  4. Step 4: Simplify right side
    51,253.20x = 1,664,393,323.86
  5. Step 5: Solve for x
    x = 1,664,393,323.86/51,253.20
  6. Step 6: Final answer
    x = 32,473.94

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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.