Home / 79,356.47-109,511.69-43,057.76

Finding the Fourth Proportional to 79,356.47, 109,511.69 and 43,057.76

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Solution

The fourth proportional to 79,356.47, 109,511.69 and 43,057.76 is: 59,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,356.47 : 109,511.69 = 43,057.76 : x
  2. Step 2: Convert to fraction form
    79,356.47/109,511.69 = 43,057.76/x
  3. Step 3: Cross multiply
    79,356.47x = 109,511.69 × 43,057.76
  4. Step 4: Simplify right side
    79,356.47x = 4,715,327,302.37
  5. Step 5: Solve for x
    x = 4,715,327,302.37/79,356.47
  6. Step 6: Final answer
    x = 59,419.57

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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.