Home / 70,713.18-106,044.26-20,779.92

Finding the Fourth Proportional to 70,713.18, 106,044.26 and 20,779.92

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Solution

The fourth proportional to 70,713.18, 106,044.26 and 20,779.92 is: 31,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,713.18 : 106,044.26 = 20,779.92 : x
  2. Step 2: Convert to fraction form
    70,713.18/106,044.26 = 20,779.92/x
  3. Step 3: Cross multiply
    70,713.18x = 106,044.26 × 20,779.92
  4. Step 4: Simplify right side
    70,713.18x = 2,203,591,135.36
  5. Step 5: Solve for x
    x = 2,203,591,135.36/70,713.18
  6. Step 6: Final answer
    x = 31,162.38

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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.