Home / 47,788.80-71,715.60-31,108.20

Finding the Fourth Proportional to 47,788.80, 71,715.60 and 31,108.20

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Solution

The fourth proportional to 47,788.80, 71,715.60 and 31,108.20 is: 46,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,788.80 : 71,715.60 = 31,108.20 : x
  2. Step 2: Convert to fraction form
    47,788.80/71,715.60 = 31,108.20/x
  3. Step 3: Cross multiply
    47,788.80x = 71,715.60 × 31,108.20
  4. Step 4: Simplify right side
    47,788.80x = 2,230,943,227.92
  5. Step 5: Solve for x
    x = 2,230,943,227.92/47,788.80
  6. Step 6: Final answer
    x = 46,683.39

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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.