Home / 72,070.22-108,108.07-19,479.73

Finding the Fourth Proportional to 72,070.22, 108,108.07 and 19,479.73

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Solution

The fourth proportional to 72,070.22, 108,108.07 and 19,479.73 is: 29,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070.22 : 108,108.07 = 19,479.73 : x
  2. Step 2: Convert to fraction form
    72,070.22/108,108.07 = 19,479.73/x
  3. Step 3: Cross multiply
    72,070.22x = 108,108.07 × 19,479.73
  4. Step 4: Simplify right side
    72,070.22x = 2,105,916,014.42
  5. Step 5: Solve for x
    x = 2,105,916,014.42/72,070.22
  6. Step 6: Final answer
    x = 29,220.34

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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.