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Finding the Fourth Proportional to 45,222.59, 67,834.04 and 18,908.89

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Solution

The fourth proportional to 45,222.59, 67,834.04 and 18,908.89 is: 28,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,222.59 : 67,834.04 = 18,908.89 : x
  2. Step 2: Convert to fraction form
    45,222.59/67,834.04 = 18,908.89/x
  3. Step 3: Cross multiply
    45,222.59x = 67,834.04 × 18,908.89
  4. Step 4: Simplify right side
    45,222.59x = 1,282,666,278.30
  5. Step 5: Solve for x
    x = 1,282,666,278.30/45,222.59
  6. Step 6: Final answer
    x = 28,363.40

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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.