Home / 48,219.08-72,321.10-13,161.48

Finding the Fourth Proportional to 48,219.08, 72,321.10 and 13,161.48

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Solution

The fourth proportional to 48,219.08, 72,321.10 and 13,161.48 is: 19,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,219.08 : 72,321.10 = 13,161.48 : x
  2. Step 2: Convert to fraction form
    48,219.08/72,321.10 = 13,161.48/x
  3. Step 3: Cross multiply
    48,219.08x = 72,321.10 × 13,161.48
  4. Step 4: Simplify right side
    48,219.08x = 951,852,711.23
  5. Step 5: Solve for x
    x = 951,852,711.23/48,219.08
  6. Step 6: Final answer
    x = 19,740.17

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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.