Home / 77,126.73-106,434.18-43,134.81

Finding the Fourth Proportional to 77,126.73, 106,434.18 and 43,134.81

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Solution

The fourth proportional to 77,126.73, 106,434.18 and 43,134.81 is: 59,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,126.73 : 106,434.18 = 43,134.81 : x
  2. Step 2: Convert to fraction form
    77,126.73/106,434.18 = 43,134.81/x
  3. Step 3: Cross multiply
    77,126.73x = 106,434.18 × 43,134.81
  4. Step 4: Simplify right side
    77,126.73x = 4,591,018,131.81
  5. Step 5: Solve for x
    x = 4,591,018,131.81/77,126.73
  6. Step 6: Final answer
    x = 59,525.64

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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.