Home / 77,818.64-107,433.96-51,399.44

Finding the Fourth Proportional to 77,818.64, 107,433.96 and 51,399.44

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Solution

The fourth proportional to 77,818.64, 107,433.96 and 51,399.44 is: 70,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,818.64 : 107,433.96 = 51,399.44 : x
  2. Step 2: Convert to fraction form
    77,818.64/107,433.96 = 51,399.44/x
  3. Step 3: Cross multiply
    77,818.64x = 107,433.96 × 51,399.44
  4. Step 4: Simplify right side
    77,818.64x = 5,522,045,380.98
  5. Step 5: Solve for x
    x = 5,522,045,380.98/77,818.64
  6. Step 6: Final answer
    x = 70,960.45

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1.5x scale

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.