Home / 79,563.20-119,335.87-20,400.26

Finding the Fourth Proportional to 79,563.20, 119,335.87 and 20,400.26

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Solution

The fourth proportional to 79,563.20, 119,335.87 and 20,400.26 is: 30,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,563.20 : 119,335.87 = 20,400.26 : x
  2. Step 2: Convert to fraction form
    79,563.20/119,335.87 = 20,400.26/x
  3. Step 3: Cross multiply
    79,563.20x = 119,335.87 × 20,400.26
  4. Step 4: Simplify right side
    79,563.20x = 2,434,482,775.33
  5. Step 5: Solve for x
    x = 2,434,482,775.33/79,563.20
  6. Step 6: Final answer
    x = 30,598.10

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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.