Home / 87,866.50-121,255.55-47,580.26

Finding the Fourth Proportional to 87,866.50, 121,255.55 and 47,580.26

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Solution

The fourth proportional to 87,866.50, 121,255.55 and 47,580.26 is: 65,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,866.50 : 121,255.55 = 47,580.26 : x
  2. Step 2: Convert to fraction form
    87,866.50/121,255.55 = 47,580.26/x
  3. Step 3: Cross multiply
    87,866.50x = 121,255.55 × 47,580.26
  4. Step 4: Simplify right side
    87,866.50x = 5,769,371,334.10
  5. Step 5: Solve for x
    x = 5,769,371,334.10/87,866.50
  6. Step 6: Final answer
    x = 65,660.65

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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.