Home / 65,206.76-89,985.38-36,921.56

Finding the Fourth Proportional to 65,206.76, 89,985.38 and 36,921.56

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Solution

The fourth proportional to 65,206.76, 89,985.38 and 36,921.56 is: 50,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,206.76 : 89,985.38 = 36,921.56 : x
  2. Step 2: Convert to fraction form
    65,206.76/89,985.38 = 36,921.56/x
  3. Step 3: Cross multiply
    65,206.76x = 89,985.38 × 36,921.56
  4. Step 4: Simplify right side
    65,206.76x = 3,322,400,606.79
  5. Step 5: Solve for x
    x = 3,322,400,606.79/65,206.76
  6. Step 6: Final answer
    x = 50,951.78

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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.