Home / 72,029.45-108,044.19-19,438.93

Finding the Fourth Proportional to 72,029.45, 108,044.19 and 19,438.93

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Solution

The fourth proportional to 72,029.45, 108,044.19 and 19,438.93 is: 29,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.45 : 108,044.19 = 19,438.93 : x
  2. Step 2: Convert to fraction form
    72,029.45/108,044.19 = 19,438.93/x
  3. Step 3: Cross multiply
    72,029.45x = 108,044.19 × 19,438.93
  4. Step 4: Simplify right side
    72,029.45x = 2,100,263,176.21
  5. Step 5: Solve for x
    x = 2,100,263,176.21/72,029.45
  6. Step 6: Final answer
    x = 29,158.40

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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.