Home / 48,659.20-72,931.20-20,579.20

Finding the Fourth Proportional to 48,659.20, 72,931.20 and 20,579.20

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Solution

The fourth proportional to 48,659.20, 72,931.20 and 20,579.20 is: 30,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,659.20 : 72,931.20 = 20,579.20 : x
  2. Step 2: Convert to fraction form
    48,659.20/72,931.20 = 20,579.20/x
  3. Step 3: Cross multiply
    48,659.20x = 72,931.20 × 20,579.20
  4. Step 4: Simplify right side
    48,659.20x = 1,500,865,751.04
  5. Step 5: Solve for x
    x = 1,500,865,751.04/48,659.20
  6. Step 6: Final answer
    x = 30,844.44

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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.