Home / 76,176.05-114,262.85-20,772.05

Finding the Fourth Proportional to 76,176.05, 114,262.85 and 20,772.05

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Solution

The fourth proportional to 76,176.05, 114,262.85 and 20,772.05 is: 31,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,176.05 : 114,262.85 = 20,772.05 : x
  2. Step 2: Convert to fraction form
    76,176.05/114,262.85 = 20,772.05/x
  3. Step 3: Cross multiply
    76,176.05x = 114,262.85 × 20,772.05
  4. Step 4: Simplify right side
    76,176.05x = 2,373,473,113.96
  5. Step 5: Solve for x
    x = 2,373,473,113.96/76,176.05
  6. Step 6: Final answer
    x = 31,157.74

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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.