Home / 47,701.92-71,557.78-12,641.58

Finding the Fourth Proportional to 47,701.92, 71,557.78 and 12,641.58

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Solution

The fourth proportional to 47,701.92, 71,557.78 and 12,641.58 is: 18,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,701.92 : 71,557.78 = 12,641.58 : x
  2. Step 2: Convert to fraction form
    47,701.92/71,557.78 = 12,641.58/x
  3. Step 3: Cross multiply
    47,701.92x = 71,557.78 × 12,641.58
  4. Step 4: Simplify right side
    47,701.92x = 904,603,400.49
  5. Step 5: Solve for x
    x = 904,603,400.49/47,701.92
  6. Step 6: Final answer
    x = 18,963.67

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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.