Home / 87,867.60-121,257.07-47,581.36

Finding the Fourth Proportional to 87,867.60, 121,257.07 and 47,581.36

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Solution

The fourth proportional to 87,867.60, 121,257.07 and 47,581.36 is: 65,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.60 : 121,257.07 = 47,581.36 : x
  2. Step 2: Convert to fraction form
    87,867.60/121,257.07 = 47,581.36/x
  3. Step 3: Cross multiply
    87,867.60x = 121,257.07 × 47,581.36
  4. Step 4: Simplify right side
    87,867.60x = 5,769,576,300.22
  5. Step 5: Solve for x
    x = 5,769,576,300.22/87,867.60
  6. Step 6: Final answer
    x = 65,662.16

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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.