Home / 92,785.22-128,043.15-50,343.75

Finding the Fourth Proportional to 92,785.22, 128,043.15 and 50,343.75

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Solution

The fourth proportional to 92,785.22, 128,043.15 and 50,343.75 is: 69,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,785.22 : 128,043.15 = 50,343.75 : x
  2. Step 2: Convert to fraction form
    92,785.22/128,043.15 = 50,343.75/x
  3. Step 3: Cross multiply
    92,785.22x = 128,043.15 × 50,343.75
  4. Step 4: Simplify right side
    92,785.22x = 6,446,172,928.92
  5. Step 5: Solve for x
    x = 6,446,172,928.92/92,785.22
  6. Step 6: Final answer
    x = 69,474.13

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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.