Home / 75,484.32-113,217.84-20,084.64

Finding the Fourth Proportional to 75,484.32, 113,217.84 and 20,084.64

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Solution

The fourth proportional to 75,484.32, 113,217.84 and 20,084.64 is: 30,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,484.32 : 113,217.84 = 20,084.64 : x
  2. Step 2: Convert to fraction form
    75,484.32/113,217.84 = 20,084.64/x
  3. Step 3: Cross multiply
    75,484.32x = 113,217.84 × 20,084.64
  4. Step 4: Simplify right side
    75,484.32x = 2,273,939,557.98
  5. Step 5: Solve for x
    x = 2,273,939,557.98/75,484.32
  6. Step 6: Final answer
    x = 30,124.66

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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.