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Finding the Fourth Proportional to 66,325.20, 91,525.77 and 36,109.77

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Solution

The fourth proportional to 66,325.20, 91,525.77 and 36,109.77 is: 49,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,325.20 : 91,525.77 = 36,109.77 : x
  2. Step 2: Convert to fraction form
    66,325.20/91,525.77 = 36,109.77/x
  3. Step 3: Cross multiply
    66,325.20x = 91,525.77 × 36,109.77
  4. Step 4: Simplify right side
    66,325.20x = 3,304,974,503.77
  5. Step 5: Solve for x
    x = 3,304,974,503.77/66,325.20
  6. Step 6: Final answer
    x = 49,829.85

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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.