Home / 74,947.98-103,423.80-40,956.72

Finding the Fourth Proportional to 74,947.98, 103,423.80 and 40,956.72

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Solution

The fourth proportional to 74,947.98, 103,423.80 and 40,956.72 is: 56,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.98 : 103,423.80 = 40,956.72 : x
  2. Step 2: Convert to fraction form
    74,947.98/103,423.80 = 40,956.72/x
  3. Step 3: Cross multiply
    74,947.98x = 103,423.80 × 40,956.72
  4. Step 4: Simplify right side
    74,947.98x = 4,235,899,383.68
  5. Step 5: Solve for x
    x = 4,235,899,383.68/74,947.98
  6. Step 6: Final answer
    x = 56,517.86

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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.