Home / 75,779.28-104,620.20-67,372.50

Finding the Fourth Proportional to 75,779.28, 104,620.20 and 67,372.50

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Solution

The fourth proportional to 75,779.28, 104,620.20 and 67,372.50 is: 93,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,779.28 : 104,620.20 = 67,372.50 : x
  2. Step 2: Convert to fraction form
    75,779.28/104,620.20 = 67,372.50/x
  3. Step 3: Cross multiply
    75,779.28x = 104,620.20 × 67,372.50
  4. Step 4: Simplify right side
    75,779.28x = 7,048,524,424.50
  5. Step 5: Solve for x
    x = 7,048,524,424.50/75,779.28
  6. Step 6: Final answer
    x = 93,013.87

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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.