Home / 77,019.84-106,286.20-43,028.80

Finding the Fourth Proportional to 77,019.84, 106,286.20 and 43,028.80

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Solution

The fourth proportional to 77,019.84, 106,286.20 and 43,028.80 is: 59,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019.84 : 106,286.20 = 43,028.80 : x
  2. Step 2: Convert to fraction form
    77,019.84/106,286.20 = 43,028.80/x
  3. Step 3: Cross multiply
    77,019.84x = 106,286.20 × 43,028.80
  4. Step 4: Simplify right side
    77,019.84x = 4,573,367,269.27
  5. Step 5: Solve for x
    x = 4,573,367,269.27/77,019.84
  6. Step 6: Final answer
    x = 59,379.08

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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.