Home / 79,579.02-119,368.56-20,414.69

Finding the Fourth Proportional to 79,579.02, 119,368.56 and 20,414.69

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Solution

The fourth proportional to 79,579.02, 119,368.56 and 20,414.69 is: 30,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.02 : 119,368.56 = 20,414.69 : x
  2. Step 2: Convert to fraction form
    79,579.02/119,368.56 = 20,414.69/x
  3. Step 3: Cross multiply
    79,579.02x = 119,368.56 × 20,414.69
  4. Step 4: Simplify right side
    79,579.02x = 2,436,872,148.15
  5. Step 5: Solve for x
    x = 2,436,872,148.15/79,579.02
  6. Step 6: Final answer
    x = 30,622.04

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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.