Home / 79,506.10-119,258.31-20,341.30

Finding the Fourth Proportional to 79,506.10, 119,258.31 and 20,341.30

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Solution

The fourth proportional to 79,506.10, 119,258.31 and 20,341.30 is: 30,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,506.10 : 119,258.31 = 20,341.30 : x
  2. Step 2: Convert to fraction form
    79,506.10/119,258.31 = 20,341.30/x
  3. Step 3: Cross multiply
    79,506.10x = 119,258.31 × 20,341.30
  4. Step 4: Simplify right side
    79,506.10x = 2,425,869,061.20
  5. Step 5: Solve for x
    x = 2,425,869,061.20/79,506.10
  6. Step 6: Final answer
    x = 30,511.74

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1.5x scale

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.