Home / 65,581.32-98,372.02-28,117.20

Finding the Fourth Proportional to 65,581.32, 98,372.02 and 28,117.20

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Solution

The fourth proportional to 65,581.32, 98,372.02 and 28,117.20 is: 42,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,581.32 : 98,372.02 = 28,117.20 : x
  2. Step 2: Convert to fraction form
    65,581.32/98,372.02 = 28,117.20/x
  3. Step 3: Cross multiply
    65,581.32x = 98,372.02 × 28,117.20
  4. Step 4: Simplify right side
    65,581.32x = 2,765,945,760.74
  5. Step 5: Solve for x
    x = 2,765,945,760.74/65,581.32
  6. Step 6: Final answer
    x = 42,175.82

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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.