Home / 70,612.22-105,932.92-20,693.95

Finding the Fourth Proportional to 70,612.22, 105,932.92 and 20,693.95

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Solution

The fourth proportional to 70,612.22, 105,932.92 and 20,693.95 is: 31,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,612.22 : 105,932.92 = 20,693.95 : x
  2. Step 2: Convert to fraction form
    70,612.22/105,932.92 = 20,693.95/x
  3. Step 3: Cross multiply
    70,612.22x = 105,932.92 × 20,693.95
  4. Step 4: Simplify right side
    70,612.22x = 2,192,170,549.83
  5. Step 5: Solve for x
    x = 2,192,170,549.83/70,612.22
  6. Step 6: Final answer
    x = 31,045.20

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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.