Home / 65,724.10-98,600.55-21,343.30

Finding the Fourth Proportional to 65,724.10, 98,600.55 and 21,343.30

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Solution

The fourth proportional to 65,724.10, 98,600.55 and 21,343.30 is: 32,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,724.10 : 98,600.55 = 21,343.30 : x
  2. Step 2: Convert to fraction form
    65,724.10/98,600.55 = 21,343.30/x
  3. Step 3: Cross multiply
    65,724.10x = 98,600.55 × 21,343.30
  4. Step 4: Simplify right side
    65,724.10x = 2,104,461,118.82
  5. Step 5: Solve for x
    x = 2,104,461,118.82/65,724.10
  6. Step 6: Final answer
    x = 32,019.63

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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.