Home / 65,669.10-98,515.80-21,297.30

Finding the Fourth Proportional to 65,669.10, 98,515.80 and 21,297.30

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Solution

The fourth proportional to 65,669.10, 98,515.80 and 21,297.30 is: 31,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,669.10 : 98,515.80 = 21,297.30 : x
  2. Step 2: Convert to fraction form
    65,669.10/98,515.80 = 21,297.30/x
  3. Step 3: Cross multiply
    65,669.10x = 98,515.80 × 21,297.30
  4. Step 4: Simplify right side
    65,669.10x = 2,098,120,547.34
  5. Step 5: Solve for x
    x = 2,098,120,547.34/65,669.10
  6. Step 6: Final answer
    x = 31,949.89

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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.