Home / 48,446.78-72,638.97-20,385.02

Finding the Fourth Proportional to 48,446.78, 72,638.97 and 20,385.02

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Solution

The fourth proportional to 48,446.78, 72,638.97 and 20,385.02 is: 30,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,446.78 : 72,638.97 = 20,385.02 : x
  2. Step 2: Convert to fraction form
    48,446.78/72,638.97 = 20,385.02/x
  3. Step 3: Cross multiply
    48,446.78x = 72,638.97 × 20,385.02
  4. Step 4: Simplify right side
    48,446.78x = 1,480,746,856.23
  5. Step 5: Solve for x
    x = 1,480,746,856.23/48,446.78
  6. Step 6: Final answer
    x = 30,564.40

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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.