Home / 70,614.22-105,935.92-20,695.95

Finding the Fourth Proportional to 70,614.22, 105,935.92 and 20,695.95

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Solution

The fourth proportional to 70,614.22, 105,935.92 and 20,695.95 is: 31,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.22 : 105,935.92 = 20,695.95 : x
  2. Step 2: Convert to fraction form
    70,614.22/105,935.92 = 20,695.95/x
  3. Step 3: Cross multiply
    70,614.22x = 105,935.92 × 20,695.95
  4. Step 4: Simplify right side
    70,614.22x = 2,192,444,503.52
  5. Step 5: Solve for x
    x = 2,192,444,503.52/70,614.22
  6. Step 6: Final answer
    x = 31,048.20

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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.