Home / 48,780.48-73,170.78-13,720.16

Finding the Fourth Proportional to 48,780.48, 73,170.78 and 13,720.16

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Solution

The fourth proportional to 48,780.48, 73,170.78 and 13,720.16 is: 20,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.48 : 73,170.78 = 13,720.16 : x
  2. Step 2: Convert to fraction form
    48,780.48/73,170.78 = 13,720.16/x
  3. Step 3: Cross multiply
    48,780.48x = 73,170.78 × 13,720.16
  4. Step 4: Simplify right side
    48,780.48x = 1,003,914,808.92
  5. Step 5: Solve for x
    x = 1,003,914,808.92/48,780.48
  6. Step 6: Final answer
    x = 20,580.26

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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.