Home / 87,263.45-120,464.80-58,239.87

Finding the Fourth Proportional to 87,263.45, 120,464.80 and 58,239.87

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Solution

The fourth proportional to 87,263.45, 120,464.80 and 58,239.87 is: 80,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,263.45 : 120,464.80 = 58,239.87 : x
  2. Step 2: Convert to fraction form
    87,263.45/120,464.80 = 58,239.87/x
  3. Step 3: Cross multiply
    87,263.45x = 120,464.80 × 58,239.87
  4. Step 4: Simplify right side
    87,263.45x = 7,015,854,291.58
  5. Step 5: Solve for x
    x = 7,015,854,291.58/87,263.45
  6. Step 6: Final answer
    x = 80,398.54

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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.