Home / 77,007.76-106,234.20-50,140.48

Finding the Fourth Proportional to 77,007.76, 106,234.20 and 50,140.48

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Solution

The fourth proportional to 77,007.76, 106,234.20 and 50,140.48 is: 69,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007.76 : 106,234.20 = 50,140.48 : x
  2. Step 2: Convert to fraction form
    77,007.76/106,234.20 = 50,140.48/x
  3. Step 3: Cross multiply
    77,007.76x = 106,234.20 × 50,140.48
  4. Step 4: Simplify right side
    77,007.76x = 5,326,633,780.42
  5. Step 5: Solve for x
    x = 5,326,633,780.42/77,007.76
  6. Step 6: Final answer
    x = 69,170.09

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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.