Home / 80,059.24-120,164.12-40,644.64

Finding the Fourth Proportional to 80,059.24, 120,164.12 and 40,644.64

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Solution

The fourth proportional to 80,059.24, 120,164.12 and 40,644.64 is: 61,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,059.24 : 120,164.12 = 40,644.64 : x
  2. Step 2: Convert to fraction form
    80,059.24/120,164.12 = 40,644.64/x
  3. Step 3: Cross multiply
    80,059.24x = 120,164.12 × 40,644.64
  4. Step 4: Simplify right side
    80,059.24x = 4,884,027,398.32
  5. Step 5: Solve for x
    x = 4,884,027,398.32/80,059.24
  6. Step 6: Final answer
    x = 61,005.17

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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.