Home / 75,620.40-113,500.70-38,206.82

Finding the Fourth Proportional to 75,620.40, 113,500.70 and 38,206.82

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Solution

The fourth proportional to 75,620.40, 113,500.70 and 38,206.82 is: 57,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,620.40 : 113,500.70 = 38,206.82 : x
  2. Step 2: Convert to fraction form
    75,620.40/113,500.70 = 38,206.82/x
  3. Step 3: Cross multiply
    75,620.40x = 113,500.70 × 38,206.82
  4. Step 4: Simplify right side
    75,620.40x = 4,336,500,814.77
  5. Step 5: Solve for x
    x = 4,336,500,814.77/75,620.40
  6. Step 6: Final answer
    x = 57,345.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.