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Finding the Fourth Proportional to 66,231.66, 91,384.12 and 44,760.78

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Solution

The fourth proportional to 66,231.66, 91,384.12 and 44,760.78 is: 61,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,231.66 : 91,384.12 = 44,760.78 : x
  2. Step 2: Convert to fraction form
    66,231.66/91,384.12 = 44,760.78/x
  3. Step 3: Cross multiply
    66,231.66x = 91,384.12 × 44,760.78
  4. Step 4: Simplify right side
    66,231.66x = 4,090,424,490.81
  5. Step 5: Solve for x
    x = 4,090,424,490.81/66,231.66
  6. Step 6: Final answer
    x = 61,759.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.