Home / 75,913.50-113,939.69-38,499.39

Finding the Fourth Proportional to 75,913.50, 113,939.69 and 38,499.39

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Solution

The fourth proportional to 75,913.50, 113,939.69 and 38,499.39 is: 57,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,913.50 : 113,939.69 = 38,499.39 : x
  2. Step 2: Convert to fraction form
    75,913.50/113,939.69 = 38,499.39/x
  3. Step 3: Cross multiply
    75,913.50x = 113,939.69 × 38,499.39
  4. Step 4: Simplify right side
    75,913.50x = 4,386,608,369.29
  5. Step 5: Solve for x
    x = 4,386,608,369.29/75,913.50
  6. Step 6: Final answer
    x = 57,784.30

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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.