Home / 67,110.75-100,666.73-20,363.63

Finding the Fourth Proportional to 67,110.75, 100,666.73 and 20,363.63

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Solution

The fourth proportional to 67,110.75, 100,666.73 and 20,363.63 is: 30,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,110.75 : 100,666.73 = 20,363.63 : x
  2. Step 2: Convert to fraction form
    67,110.75/100,666.73 = 20,363.63/x
  3. Step 3: Cross multiply
    67,110.75x = 100,666.73 × 20,363.63
  4. Step 4: Simplify right side
    67,110.75x = 2,049,939,590.61
  5. Step 5: Solve for x
    x = 2,049,939,590.61/67,110.75
  6. Step 6: Final answer
    x = 30,545.62

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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.