Home / 48,987.78-73,443.60-15,688.68

Finding the Fourth Proportional to 48,987.78, 73,443.60 and 15,688.68

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Solution

The fourth proportional to 48,987.78, 73,443.60 and 15,688.68 is: 23,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,987.78 : 73,443.60 = 15,688.68 : x
  2. Step 2: Convert to fraction form
    48,987.78/73,443.60 = 15,688.68/x
  3. Step 3: Cross multiply
    48,987.78x = 73,443.60 × 15,688.68
  4. Step 4: Simplify right side
    48,987.78x = 1,152,233,138.45
  5. Step 5: Solve for x
    x = 1,152,233,138.45/48,987.78
  6. Step 6: Final answer
    x = 23,520.83

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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.