Home / 99,782.22-149,676.57-52,385.34

Finding the Fourth Proportional to 99,782.22, 149,676.57 and 52,385.34

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Solution

The fourth proportional to 99,782.22, 149,676.57 and 52,385.34 is: 78,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,782.22 : 149,676.57 = 52,385.34 : x
  2. Step 2: Convert to fraction form
    99,782.22/149,676.57 = 52,385.34/x
  3. Step 3: Cross multiply
    99,782.22x = 149,676.57 × 52,385.34
  4. Step 4: Simplify right side
    99,782.22x = 7,840,858,009.48
  5. Step 5: Solve for x
    x = 7,840,858,009.48/99,782.22
  6. Step 6: Final answer
    x = 78,579.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.