Home / 65,191.57-89,966.52-38,336.56

Finding the Fourth Proportional to 65,191.57, 89,966.52 and 38,336.56

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Solution

The fourth proportional to 65,191.57, 89,966.52 and 38,336.56 is: 52,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,191.57 : 89,966.52 = 38,336.56 : x
  2. Step 2: Convert to fraction form
    65,191.57/89,966.52 = 38,336.56/x
  3. Step 3: Cross multiply
    65,191.57x = 89,966.52 × 38,336.56
  4. Step 4: Simplify right side
    65,191.57x = 3,449,006,667.05
  5. Step 5: Solve for x
    x = 3,449,006,667.05/65,191.57
  6. Step 6: Final answer
    x = 52,905.72

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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.