Home / 87,755.82-121,094.88-53,748.78

Finding the Fourth Proportional to 87,755.82, 121,094.88 and 53,748.78

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Solution

The fourth proportional to 87,755.82, 121,094.88 and 53,748.78 is: 74,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755.82 : 121,094.88 = 53,748.78 : x
  2. Step 2: Convert to fraction form
    87,755.82/121,094.88 = 53,748.78/x
  3. Step 3: Cross multiply
    87,755.82x = 121,094.88 × 53,748.78
  4. Step 4: Simplify right side
    87,755.82x = 6,508,702,064.25
  5. Step 5: Solve for x
    x = 6,508,702,064.25/87,755.82
  6. Step 6: Final answer
    x = 74,168.32

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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.