Home / 47,179.18-70,768.77-12,118.87

Finding the Fourth Proportional to 47,179.18, 70,768.77 and 12,118.87

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Solution

The fourth proportional to 47,179.18, 70,768.77 and 12,118.87 is: 18,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,179.18 : 70,768.77 = 12,118.87 : x
  2. Step 2: Convert to fraction form
    47,179.18/70,768.77 = 12,118.87/x
  3. Step 3: Cross multiply
    47,179.18x = 70,768.77 × 12,118.87
  4. Step 4: Simplify right side
    47,179.18x = 857,637,523.69
  5. Step 5: Solve for x
    x = 857,637,523.69/47,179.18
  6. Step 6: Final answer
    x = 18,178.31

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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.