Home / 48,408.65-72,539.01-20,313.47

Finding the Fourth Proportional to 48,408.65, 72,539.01 and 20,313.47

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Solution

The fourth proportional to 48,408.65, 72,539.01 and 20,313.47 is: 30,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.65 : 72,539.01 = 20,313.47 : x
  2. Step 2: Convert to fraction form
    48,408.65/72,539.01 = 20,313.47/x
  3. Step 3: Cross multiply
    48,408.65x = 72,539.01 × 20,313.47
  4. Step 4: Simplify right side
    48,408.65x = 1,473,519,003.46
  5. Step 5: Solve for x
    x = 1,473,519,003.46/48,408.65
  6. Step 6: Final answer
    x = 30,439.17

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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.