Home / 79,651.10-119,480.98-20,487.26

Finding the Fourth Proportional to 79,651.10, 119,480.98 and 20,487.26

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Solution

The fourth proportional to 79,651.10, 119,480.98 and 20,487.26 is: 30,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,651.10 : 119,480.98 = 20,487.26 : x
  2. Step 2: Convert to fraction form
    79,651.10/119,480.98 = 20,487.26/x
  3. Step 3: Cross multiply
    79,651.10x = 119,480.98 × 20,487.26
  4. Step 4: Simplify right side
    79,651.10x = 2,447,837,902.31
  5. Step 5: Solve for x
    x = 2,447,837,902.31/79,651.10
  6. Step 6: Final answer
    x = 30,732.00

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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.