Home / 87,340.30-120,530.04-51,043.84

Finding the Fourth Proportional to 87,340.30, 120,530.04 and 51,043.84

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Solution

The fourth proportional to 87,340.30, 120,530.04 and 51,043.84 is: 70,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.30 : 120,530.04 = 51,043.84 : x
  2. Step 2: Convert to fraction form
    87,340.30/120,530.04 = 51,043.84/x
  3. Step 3: Cross multiply
    87,340.30x = 120,530.04 × 51,043.84
  4. Step 4: Simplify right side
    87,340.30x = 6,152,316,076.95
  5. Step 5: Solve for x
    x = 6,152,316,076.95/87,340.30
  6. Step 6: Final answer
    x = 70,440.75

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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.