Home / 65,693.12-98,554.08-21,324.32

Finding the Fourth Proportional to 65,693.12, 98,554.08 and 21,324.32

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Solution

The fourth proportional to 65,693.12, 98,554.08 and 21,324.32 is: 31,991.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,693.12 : 98,554.08 = 21,324.32 : x
  2. Step 2: Convert to fraction form
    65,693.12/98,554.08 = 21,324.32/x
  3. Step 3: Cross multiply
    65,693.12x = 98,554.08 × 21,324.32
  4. Step 4: Simplify right side
    65,693.12x = 2,101,598,739.23
  5. Step 5: Solve for x
    x = 2,101,598,739.23/65,693.12
  6. Step 6: Final answer
    x = 31,991.15

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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.