Home / 74,947.69-103,427.68-40,956.48

Finding the Fourth Proportional to 74,947.69, 103,427.68 and 40,956.48

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Solution

The fourth proportional to 74,947.69, 103,427.68 and 40,956.48 is: 56,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.69 : 103,427.68 = 40,956.48 : x
  2. Step 2: Convert to fraction form
    74,947.69/103,427.68 = 40,956.48/x
  3. Step 3: Cross multiply
    74,947.69x = 103,427.68 × 40,956.48
  4. Step 4: Simplify right side
    74,947.69x = 4,236,033,707.37
  5. Step 5: Solve for x
    x = 4,236,033,707.37/74,947.69
  6. Step 6: Final answer
    x = 56,519.87

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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.