Home / 87,733.36-121,072.41-47,447.12

Finding the Fourth Proportional to 87,733.36, 121,072.41 and 47,447.12

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Solution

The fourth proportional to 87,733.36, 121,072.41 and 47,447.12 is: 65,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,733.36 : 121,072.41 = 47,447.12 : x
  2. Step 2: Convert to fraction form
    87,733.36/121,072.41 = 47,447.12/x
  3. Step 3: Cross multiply
    87,733.36x = 121,072.41 × 47,447.12
  4. Step 4: Simplify right side
    87,733.36x = 5,744,536,928.72
  5. Step 5: Solve for x
    x = 5,744,536,928.72/87,733.36
  6. Step 6: Final answer
    x = 65,477.22

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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.