Home / 48,720.40-73,049.28-19,141.36

Finding the Fourth Proportional to 48,720.40, 73,049.28 and 19,141.36

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Solution

The fourth proportional to 48,720.40, 73,049.28 and 19,141.36 is: 28,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,720.40 : 73,049.28 = 19,141.36 : x
  2. Step 2: Convert to fraction form
    48,720.40/73,049.28 = 19,141.36/x
  3. Step 3: Cross multiply
    48,720.40x = 73,049.28 × 19,141.36
  4. Step 4: Simplify right side
    48,720.40x = 1,398,262,566.22
  5. Step 5: Solve for x
    x = 1,398,262,566.22/48,720.40
  6. Step 6: Final answer
    x = 28,699.73

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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.