Home / 65,921.32-98,889.18-19,181.80

Finding the Fourth Proportional to 65,921.32, 98,889.18 and 19,181.80

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Solution

The fourth proportional to 65,921.32, 98,889.18 and 19,181.80 is: 28,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.32 : 98,889.18 = 19,181.80 : x
  2. Step 2: Convert to fraction form
    65,921.32/98,889.18 = 19,181.80/x
  3. Step 3: Cross multiply
    65,921.32x = 98,889.18 × 19,181.80
  4. Step 4: Simplify right side
    65,921.32x = 1,896,872,472.92
  5. Step 5: Solve for x
    x = 1,896,872,472.92/65,921.32
  6. Step 6: Final answer
    x = 28,774.80

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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.