Home / 75,824.60-104,635.68-42,290.60

Finding the Fourth Proportional to 75,824.60, 104,635.68 and 42,290.60

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Solution

The fourth proportional to 75,824.60, 104,635.68 and 42,290.60 is: 58,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,824.60 : 104,635.68 = 42,290.60 : x
  2. Step 2: Convert to fraction form
    75,824.60/104,635.68 = 42,290.60/x
  3. Step 3: Cross multiply
    75,824.60x = 104,635.68 × 42,290.60
  4. Step 4: Simplify right side
    75,824.60x = 4,425,105,688.61
  5. Step 5: Solve for x
    x = 4,425,105,688.61/75,824.60
  6. Step 6: Final answer
    x = 58,359.76

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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.