Home / 65,712.20-98,568.30-37,977.80

Finding the Fourth Proportional to 65,712.20, 98,568.30 and 37,977.80

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Solution

The fourth proportional to 65,712.20, 98,568.30 and 37,977.80 is: 56,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712.20 : 98,568.30 = 37,977.80 : x
  2. Step 2: Convert to fraction form
    65,712.20/98,568.30 = 37,977.80/x
  3. Step 3: Cross multiply
    65,712.20x = 98,568.30 × 37,977.80
  4. Step 4: Simplify right side
    65,712.20x = 3,743,407,183.74
  5. Step 5: Solve for x
    x = 3,743,407,183.74/65,712.20
  6. Step 6: Final answer
    x = 56,966.70

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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.