Home / 85,490.50-117,973.38-49,680.22

Finding the Fourth Proportional to 85,490.50, 117,973.38 and 49,680.22

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Solution

The fourth proportional to 85,490.50, 117,973.38 and 49,680.22 is: 68,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,490.50 : 117,973.38 = 49,680.22 : x
  2. Step 2: Convert to fraction form
    85,490.50/117,973.38 = 49,680.22/x
  3. Step 3: Cross multiply
    85,490.50x = 117,973.38 × 49,680.22
  4. Step 4: Simplify right side
    85,490.50x = 5,860,943,472.54
  5. Step 5: Solve for x
    x = 5,860,943,472.54/85,490.50
  6. Step 6: Final answer
    x = 68,556.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.