Home / 48,420.10-72,634.34-13,359.76

Finding the Fourth Proportional to 48,420.10, 72,634.34 and 13,359.76

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Solution

The fourth proportional to 48,420.10, 72,634.34 and 13,359.76 is: 20,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,420.10 : 72,634.34 = 13,359.76 : x
  2. Step 2: Convert to fraction form
    48,420.10/72,634.34 = 13,359.76/x
  3. Step 3: Cross multiply
    48,420.10x = 72,634.34 × 13,359.76
  4. Step 4: Simplify right side
    48,420.10x = 970,376,920.19
  5. Step 5: Solve for x
    x = 970,376,920.19/48,420.10
  6. Step 6: Final answer
    x = 20,040.79

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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.