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Finding the Fourth Proportional to 66,370.93, 91,590.82 and 36,156.61

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Solution

The fourth proportional to 66,370.93, 91,590.82 and 36,156.61 is: 49,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,370.93 : 91,590.82 = 36,156.61 : x
  2. Step 2: Convert to fraction form
    66,370.93/91,590.82 = 36,156.61/x
  3. Step 3: Cross multiply
    66,370.93x = 91,590.82 × 36,156.61
  4. Step 4: Simplify right side
    66,370.93x = 3,311,613,718.00
  5. Step 5: Solve for x
    x = 3,311,613,718.00/66,370.93
  6. Step 6: Final answer
    x = 49,895.55

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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.