Home / 48,342.69-72,439.88-20,247.37

Finding the Fourth Proportional to 48,342.69, 72,439.88 and 20,247.37

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Solution

The fourth proportional to 48,342.69, 72,439.88 and 20,247.37 is: 30,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,342.69 : 72,439.88 = 20,247.37 : x
  2. Step 2: Convert to fraction form
    48,342.69/72,439.88 = 20,247.37/x
  3. Step 3: Cross multiply
    48,342.69x = 72,439.88 × 20,247.37
  4. Step 4: Simplify right side
    48,342.69x = 1,466,716,770.78
  5. Step 5: Solve for x
    x = 1,466,716,770.78/48,342.69
  6. Step 6: Final answer
    x = 30,339.99

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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.