Home / 87,733.79-121,072.27-47,447.59

Finding the Fourth Proportional to 87,733.79, 121,072.27 and 47,447.59

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Solution

The fourth proportional to 87,733.79, 121,072.27 and 47,447.59 is: 65,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,733.79 : 121,072.27 = 47,447.59 : x
  2. Step 2: Convert to fraction form
    87,733.79/121,072.27 = 47,447.59/x
  3. Step 3: Cross multiply
    87,733.79x = 121,072.27 × 47,447.59
  4. Step 4: Simplify right side
    87,733.79x = 5,744,587,427.33
  5. Step 5: Solve for x
    x = 5,744,587,427.33/87,733.79
  6. Step 6: Final answer
    x = 65,477.48

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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.