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Finding the Fourth Proportional to 66,374.79, 91,596.86 and 36,160.04

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Solution

The fourth proportional to 66,374.79, 91,596.86 and 36,160.04 is: 49,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374.79 : 91,596.86 = 36,160.04 : x
  2. Step 2: Convert to fraction form
    66,374.79/91,596.86 = 36,160.04/x
  3. Step 3: Cross multiply
    66,374.79x = 91,596.86 × 36,160.04
  4. Step 4: Simplify right side
    66,374.79x = 3,312,145,482.69
  5. Step 5: Solve for x
    x = 3,312,145,482.69/66,374.79
  6. Step 6: Final answer
    x = 49,900.65

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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.