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Finding the Fourth Proportional to 66,285.75, 91,474.35 and 36,477.75

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Solution

The fourth proportional to 66,285.75, 91,474.35 and 36,477.75 is: 50,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.75 : 91,474.35 = 36,477.75 : x
  2. Step 2: Convert to fraction form
    66,285.75/91,474.35 = 36,477.75/x
  3. Step 3: Cross multiply
    66,285.75x = 91,474.35 × 36,477.75
  4. Step 4: Simplify right side
    66,285.75x = 3,336,778,470.71
  5. Step 5: Solve for x
    x = 3,336,778,470.71/66,285.75
  6. Step 6: Final answer
    x = 50,339.30

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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.