Home / 65,828.67-98,724.15-21,459.30

Finding the Fourth Proportional to 65,828.67, 98,724.15 and 21,459.30

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Solution

The fourth proportional to 65,828.67, 98,724.15 and 21,459.30 is: 32,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,828.67 : 98,724.15 = 21,459.30 : x
  2. Step 2: Convert to fraction form
    65,828.67/98,724.15 = 21,459.30/x
  3. Step 3: Cross multiply
    65,828.67x = 98,724.15 × 21,459.30
  4. Step 4: Simplify right side
    65,828.67x = 2,118,550,781.88
  5. Step 5: Solve for x
    x = 2,118,550,781.88/65,828.67
  6. Step 6: Final answer
    x = 32,182.80

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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.