Home / 80,032.10-120,123.48-40,617.50

Finding the Fourth Proportional to 80,032.10, 120,123.48 and 40,617.50

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Solution

The fourth proportional to 80,032.10, 120,123.48 and 40,617.50 is: 60,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,032.10 : 120,123.48 = 40,617.50 : x
  2. Step 2: Convert to fraction form
    80,032.10/120,123.48 = 40,617.50/x
  3. Step 3: Cross multiply
    80,032.10x = 120,123.48 × 40,617.50
  4. Step 4: Simplify right side
    80,032.10x = 4,879,115,448.90
  5. Step 5: Solve for x
    x = 4,879,115,448.90/80,032.10
  6. Step 6: Final answer
    x = 60,964.48

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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.