Home / 87,166.80-120,298.32-51,367.92

Finding the Fourth Proportional to 87,166.80, 120,298.32 and 51,367.92

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Solution

The fourth proportional to 87,166.80, 120,298.32 and 51,367.92 is: 70,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,166.80 : 120,298.32 = 51,367.92 : x
  2. Step 2: Convert to fraction form
    87,166.80/120,298.32 = 51,367.92/x
  3. Step 3: Cross multiply
    87,166.80x = 120,298.32 × 51,367.92
  4. Step 4: Simplify right side
    87,166.80x = 6,179,474,477.89
  5. Step 5: Solve for x
    x = 6,179,474,477.89/87,166.80
  6. Step 6: Final answer
    x = 70,892.52

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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.