Home / 86,918.28-119,947.20-47,174.28

Finding the Fourth Proportional to 86,918.28, 119,947.20 and 47,174.28

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Solution

The fourth proportional to 86,918.28, 119,947.20 and 47,174.28 is: 65,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,918.28 : 119,947.20 = 47,174.28 : x
  2. Step 2: Convert to fraction form
    86,918.28/119,947.20 = 47,174.28/x
  3. Step 3: Cross multiply
    86,918.28x = 119,947.20 × 47,174.28
  4. Step 4: Simplify right side
    86,918.28x = 5,658,422,798.02
  5. Step 5: Solve for x
    x = 5,658,422,798.02/86,918.28
  6. Step 6: Final answer
    x = 65,100.49

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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.