Home / 74,947.10-103,423.93-40,956.73

Finding the Fourth Proportional to 74,947.10, 103,423.93 and 40,956.73

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Solution

The fourth proportional to 74,947.10, 103,423.93 and 40,956.73 is: 56,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.10 : 103,423.93 = 40,956.73 : x
  2. Step 2: Convert to fraction form
    74,947.10/103,423.93 = 40,956.73/x
  3. Step 3: Cross multiply
    74,947.10x = 103,423.93 × 40,956.73
  4. Step 4: Simplify right side
    74,947.10x = 4,235,905,976.55
  5. Step 5: Solve for x
    x = 4,235,905,976.55/74,947.10
  6. Step 6: Final answer
    x = 56,518.61

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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.