Home / 79,076.40-109,125.36-43,266.56

Finding the Fourth Proportional to 79,076.40, 109,125.36 and 43,266.56

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Solution

The fourth proportional to 79,076.40, 109,125.36 and 43,266.56 is: 59,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.40 : 109,125.36 = 43,266.56 : x
  2. Step 2: Convert to fraction form
    79,076.40/109,125.36 = 43,266.56/x
  3. Step 3: Cross multiply
    79,076.40x = 109,125.36 × 43,266.56
  4. Step 4: Simplify right side
    79,076.40x = 4,721,478,935.96
  5. Step 5: Solve for x
    x = 4,721,478,935.96/79,076.40
  6. Step 6: Final answer
    x = 59,707.81

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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.