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Finding the Fourth Proportional to 66,280.56, 91,464.48 and 37,966.56

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Solution

The fourth proportional to 66,280.56, 91,464.48 and 37,966.56 is: 52,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,280.56 : 91,464.48 = 37,966.56 : x
  2. Step 2: Convert to fraction form
    66,280.56/91,464.48 = 37,966.56/x
  3. Step 3: Cross multiply
    66,280.56x = 91,464.48 × 37,966.56
  4. Step 4: Simplify right side
    66,280.56x = 3,472,591,667.79
  5. Step 5: Solve for x
    x = 3,472,591,667.79/66,280.56
  6. Step 6: Final answer
    x = 52,392.31

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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.