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Finding the Fourth Proportional to 66,476.72, 91,738 and 36,262.08

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Solution

The fourth proportional to 66,476.72, 91,738 and 36,262.08 is: 50,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.72 : 91,738 = 36,262.08 : x
  2. Step 2: Convert to fraction form
    66,476.72/91,738 = 36,262.08/x
  3. Step 3: Cross multiply
    66,476.72x = 91,738 × 36,262.08
  4. Step 4: Simplify right side
    66,476.72x = 3,326,610,695.04
  5. Step 5: Solve for x
    x = 3,326,610,695.04/66,476.72
  6. Step 6: Final answer
    x = 50,041.74

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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.