Home / 75,541.20-113,360.76-69,769.68

Finding the Fourth Proportional to 75,541.20, 113,360.76 and 69,769.68

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Solution

The fourth proportional to 75,541.20, 113,360.76 and 69,769.68 is: 104,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,541.20 : 113,360.76 = 69,769.68 : x
  2. Step 2: Convert to fraction form
    75,541.20/113,360.76 = 69,769.68/x
  3. Step 3: Cross multiply
    75,541.20x = 113,360.76 × 69,769.68
  4. Step 4: Simplify right side
    75,541.20x = 7,909,143,949.76
  5. Step 5: Solve for x
    x = 7,909,143,949.76/75,541.20
  6. Step 6: Final answer
    x = 104,699.74

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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.