Home / 75,511.23-113,280.50-31,113.28

Finding the Fourth Proportional to 75,511.23, 113,280.50 and 31,113.28

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Solution

The fourth proportional to 75,511.23, 113,280.50 and 31,113.28 is: 46,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,511.23 : 113,280.50 = 31,113.28 : x
  2. Step 2: Convert to fraction form
    75,511.23/113,280.50 = 31,113.28/x
  3. Step 3: Cross multiply
    75,511.23x = 113,280.50 × 31,113.28
  4. Step 4: Simplify right side
    75,511.23x = 3,524,527,915.04
  5. Step 5: Solve for x
    x = 3,524,527,915.04/75,511.23
  6. Step 6: Final answer
    x = 46,675.55

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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.