Home / 105,338.53-145,367.14-57,591.87

Finding the Fourth Proportional to 105,338.53, 145,367.14 and 57,591.87

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Solution

The fourth proportional to 105,338.53, 145,367.14 and 57,591.87 is: 79,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,338.53 : 145,367.14 = 57,591.87 : x
  2. Step 2: Convert to fraction form
    105,338.53/145,367.14 = 57,591.87/x
  3. Step 3: Cross multiply
    105,338.53x = 145,367.14 × 57,591.87
  4. Step 4: Simplify right side
    105,338.53x = 8,371,965,429.15
  5. Step 5: Solve for x
    x = 8,371,965,429.15/105,338.53
  6. Step 6: Final answer
    x = 79,476.76

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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.