Home / 77,121.87-106,433.60-43,133.52

Finding the Fourth Proportional to 77,121.87, 106,433.60 and 43,133.52

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Solution

The fourth proportional to 77,121.87, 106,433.60 and 43,133.52 is: 59,527.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,121.87 : 106,433.60 = 43,133.52 : x
  2. Step 2: Convert to fraction form
    77,121.87/106,433.60 = 43,133.52/x
  3. Step 3: Cross multiply
    77,121.87x = 106,433.60 × 43,133.52
  4. Step 4: Simplify right side
    77,121.87x = 4,590,855,814.27
  5. Step 5: Solve for x
    x = 4,590,855,814.27/77,121.87
  6. Step 6: Final answer
    x = 59,527.29

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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.