Home / 77,766.78-107,316.39-43,311.27

Finding the Fourth Proportional to 77,766.78, 107,316.39 and 43,311.27

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Solution

The fourth proportional to 77,766.78, 107,316.39 and 43,311.27 is: 59,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,766.78 : 107,316.39 = 43,311.27 : x
  2. Step 2: Convert to fraction form
    77,766.78/107,316.39 = 43,311.27/x
  3. Step 3: Cross multiply
    77,766.78x = 107,316.39 × 43,311.27
  4. Step 4: Simplify right side
    77,766.78x = 4,648,009,142.72
  5. Step 5: Solve for x
    x = 4,648,009,142.72/77,766.78
  6. Step 6: Final answer
    x = 59,768.57

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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.