Home / 65,826.67-98,721.15-21,457.30

Finding the Fourth Proportional to 65,826.67, 98,721.15 and 21,457.30

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Solution

The fourth proportional to 65,826.67, 98,721.15 and 21,457.30 is: 32,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,826.67 : 98,721.15 = 21,457.30 : x
  2. Step 2: Convert to fraction form
    65,826.67/98,721.15 = 21,457.30/x
  3. Step 3: Cross multiply
    65,826.67x = 98,721.15 × 21,457.30
  4. Step 4: Simplify right side
    65,826.67x = 2,118,289,085.09
  5. Step 5: Solve for x
    x = 2,118,289,085.09/65,826.67
  6. Step 6: Final answer
    x = 32,179.80

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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.