Home / 87,456.24-120,692.88-53,460.72

Finding the Fourth Proportional to 87,456.24, 120,692.88 and 53,460.72

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Solution

The fourth proportional to 87,456.24, 120,692.88 and 53,460.72 is: 73,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,456.24 : 120,692.88 = 53,460.72 : x
  2. Step 2: Convert to fraction form
    87,456.24/120,692.88 = 53,460.72/x
  3. Step 3: Cross multiply
    87,456.24x = 120,692.88 × 53,460.72
  4. Step 4: Simplify right side
    87,456.24x = 6,452,328,263.67
  5. Step 5: Solve for x
    x = 6,452,328,263.67/87,456.24
  6. Step 6: Final answer
    x = 73,777.79

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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.