Home / 86,921.75-119,952.02-47,177.75

Finding the Fourth Proportional to 86,921.75, 119,952.02 and 47,177.75

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Solution

The fourth proportional to 86,921.75, 119,952.02 and 47,177.75 is: 65,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.75 : 119,952.02 = 47,177.75 : x
  2. Step 2: Convert to fraction form
    86,921.75/119,952.02 = 47,177.75/x
  3. Step 3: Cross multiply
    86,921.75x = 119,952.02 × 47,177.75
  4. Step 4: Simplify right side
    86,921.75x = 5,659,066,411.56
  5. Step 5: Solve for x
    x = 5,659,066,411.56/86,921.75
  6. Step 6: Final answer
    x = 65,105.30

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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.