Home / 47,854.20-71,792.10-28,122.60

Finding the Fourth Proportional to 47,854.20, 71,792.10 and 28,122.60

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Solution

The fourth proportional to 47,854.20, 71,792.10 and 28,122.60 is: 42,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,854.20 : 71,792.10 = 28,122.60 : x
  2. Step 2: Convert to fraction form
    47,854.20/71,792.10 = 28,122.60/x
  3. Step 3: Cross multiply
    47,854.20x = 71,792.10 × 28,122.60
  4. Step 4: Simplify right side
    47,854.20x = 2,018,980,511.46
  5. Step 5: Solve for x
    x = 2,018,980,511.46/47,854.20
  6. Step 6: Final answer
    x = 42,190.25

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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.