Home / 48,279.96-72,395.16-20,192.40

Finding the Fourth Proportional to 48,279.96, 72,395.16 and 20,192.40

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Solution

The fourth proportional to 48,279.96, 72,395.16 and 20,192.40 is: 30,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,279.96 : 72,395.16 = 20,192.40 : x
  2. Step 2: Convert to fraction form
    48,279.96/72,395.16 = 20,192.40/x
  3. Step 3: Cross multiply
    48,279.96x = 72,395.16 × 20,192.40
  4. Step 4: Simplify right side
    48,279.96x = 1,461,832,028.78
  5. Step 5: Solve for x
    x = 1,461,832,028.78/48,279.96
  6. Step 6: Final answer
    x = 30,278.24

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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.