Home / 77,289.18-106,665.83-43,297.12

Finding the Fourth Proportional to 77,289.18, 106,665.83 and 43,297.12

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Solution

The fourth proportional to 77,289.18, 106,665.83 and 43,297.12 is: 59,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,289.18 : 106,665.83 = 43,297.12 : x
  2. Step 2: Convert to fraction form
    77,289.18/106,665.83 = 43,297.12/x
  3. Step 3: Cross multiply
    77,289.18x = 106,665.83 × 43,297.12
  4. Step 4: Simplify right side
    77,289.18x = 4,618,323,241.41
  5. Step 5: Solve for x
    x = 4,618,323,241.41/77,289.18
  6. Step 6: Final answer
    x = 59,753.81

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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.