Home / 77,778.46-116,449.80-42,111.73

Finding the Fourth Proportional to 77,778.46, 116,449.80 and 42,111.73

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Solution

The fourth proportional to 77,778.46, 116,449.80 and 42,111.73 is: 63,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.46 : 116,449.80 = 42,111.73 : x
  2. Step 2: Convert to fraction form
    77,778.46/116,449.80 = 42,111.73/x
  3. Step 3: Cross multiply
    77,778.46x = 116,449.80 × 42,111.73
  4. Step 4: Simplify right side
    77,778.46x = 4,903,902,536.15
  5. Step 5: Solve for x
    x = 4,903,902,536.15/77,778.46
  6. Step 6: Final answer
    x = 63,049.62

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1.5x scale

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.