Home / 45,977.76-68,902.86-20,956.68

Finding the Fourth Proportional to 45,977.76, 68,902.86 and 20,956.68

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Solution

The fourth proportional to 45,977.76, 68,902.86 and 20,956.68 is: 31,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,977.76 : 68,902.86 = 20,956.68 : x
  2. Step 2: Convert to fraction form
    45,977.76/68,902.86 = 20,956.68/x
  3. Step 3: Cross multiply
    45,977.76x = 68,902.86 × 20,956.68
  4. Step 4: Simplify right side
    45,977.76x = 1,443,975,188.10
  5. Step 5: Solve for x
    x = 1,443,975,188.10/45,977.76
  6. Step 6: Final answer
    x = 31,405.95

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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.