Home / 87,866.27-121,256.03-47,580.04

Finding the Fourth Proportional to 87,866.27, 121,256.03 and 47,580.04

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Solution

The fourth proportional to 87,866.27, 121,256.03 and 47,580.04 is: 65,660.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,866.27 : 121,256.03 = 47,580.04 : x
  2. Step 2: Convert to fraction form
    87,866.27/121,256.03 = 47,580.04/x
  3. Step 3: Cross multiply
    87,866.27x = 121,256.03 × 47,580.04
  4. Step 4: Simplify right side
    87,866.27x = 5,769,365,913.46
  5. Step 5: Solve for x
    x = 5,769,365,913.46/87,866.27
  6. Step 6: Final answer
    x = 65,660.76

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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.