Home / 77,119.42-106,424.06-43,127.52

Finding the Fourth Proportional to 77,119.42, 106,424.06 and 43,127.52

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Solution

The fourth proportional to 77,119.42, 106,424.06 and 43,127.52 is: 59,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,119.42 : 106,424.06 = 43,127.52 : x
  2. Step 2: Convert to fraction form
    77,119.42/106,424.06 = 43,127.52/x
  3. Step 3: Cross multiply
    77,119.42x = 106,424.06 × 43,127.52
  4. Step 4: Simplify right side
    77,119.42x = 4,589,805,560.49
  5. Step 5: Solve for x
    x = 4,589,805,560.49/77,119.42
  6. Step 6: Final answer
    x = 59,515.56

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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.