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Finding the Fourth Proportional to 66,504.32, 91,774.71 and 36,288.89

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Solution

The fourth proportional to 66,504.32, 91,774.71 and 36,288.89 is: 50,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.32 : 91,774.71 = 36,288.89 : x
  2. Step 2: Convert to fraction form
    66,504.32/91,774.71 = 36,288.89/x
  3. Step 3: Cross multiply
    66,504.32x = 91,774.71 × 36,288.89
  4. Step 4: Simplify right side
    66,504.32x = 3,330,401,897.10
  5. Step 5: Solve for x
    x = 3,330,401,897.10/66,504.32
  6. Step 6: Final answer
    x = 50,077.98

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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.