Home / 72,029.64-108,044.46-19,439.12

Finding the Fourth Proportional to 72,029.64, 108,044.46 and 19,439.12

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Solution

The fourth proportional to 72,029.64, 108,044.46 and 19,439.12 is: 29,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.64 : 108,044.46 = 19,439.12 : x
  2. Step 2: Convert to fraction form
    72,029.64/108,044.46 = 19,439.12/x
  3. Step 3: Cross multiply
    72,029.64x = 108,044.46 × 19,439.12
  4. Step 4: Simplify right side
    72,029.64x = 2,100,289,223.28
  5. Step 5: Solve for x
    x = 2,100,289,223.28/72,029.64
  6. Step 6: Final answer
    x = 29,158.68

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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.