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Finding the Fourth Proportional to 87,843.16, 121,224.51 and 47,557.77

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Solution

The fourth proportional to 87,843.16, 121,224.51 and 47,557.77 is: 65,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843.16 : 121,224.51 = 47,557.77 : x
  2. Step 2: Convert to fraction form
    87,843.16/121,224.51 = 47,557.77/x
  3. Step 3: Cross multiply
    87,843.16x = 121,224.51 × 47,557.77
  4. Step 4: Simplify right side
    87,843.16x = 5,765,167,364.94
  5. Step 5: Solve for x
    x = 5,765,167,364.94/87,843.16
  6. Step 6: Final answer
    x = 65,630.24

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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.