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Finding the Fourth Proportional to 66,650.95, 91,974.59 and 36,430.26

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Solution

The fourth proportional to 66,650.95, 91,974.59 and 36,430.26 is: 50,271.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,650.95 : 91,974.59 = 36,430.26 : x
  2. Step 2: Convert to fraction form
    66,650.95/91,974.59 = 36,430.26/x
  3. Step 3: Cross multiply
    66,650.95x = 91,974.59 × 36,430.26
  4. Step 4: Simplify right side
    66,650.95x = 3,350,657,836.65
  5. Step 5: Solve for x
    x = 3,350,657,836.65/66,650.95
  6. Step 6: Final answer
    x = 50,271.72

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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.