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Finding the Fourth Proportional to 66,271.77, 91,454.02 and 36,056.40

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Solution

The fourth proportional to 66,271.77, 91,454.02 and 36,056.40 is: 49,757.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,271.77 : 91,454.02 = 36,056.40 : x
  2. Step 2: Convert to fraction form
    66,271.77/91,454.02 = 36,056.40/x
  3. Step 3: Cross multiply
    66,271.77x = 91,454.02 × 36,056.40
  4. Step 4: Simplify right side
    66,271.77x = 3,297,502,726.73
  5. Step 5: Solve for x
    x = 3,297,502,726.73/66,271.77
  6. Step 6: Final answer
    x = 49,757.28

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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.