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Finding the Fourth Proportional to 66,224.66, 99,107.82 and 40,913.78

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Solution

The fourth proportional to 66,224.66, 99,107.82 and 40,913.78 is: 61,229.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,224.66 : 99,107.82 = 40,913.78 : x
  2. Step 2: Convert to fraction form
    66,224.66/99,107.82 = 40,913.78/x
  3. Step 3: Cross multiply
    66,224.66x = 99,107.82 × 40,913.78
  4. Step 4: Simplify right side
    66,224.66x = 4,054,875,543.76
  5. Step 5: Solve for x
    x = 4,054,875,543.76/66,224.66
  6. Step 6: Final answer
    x = 61,229.09

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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.