Home / 65,979.19-98,968.79-21,606.18

Finding the Fourth Proportional to 65,979.19, 98,968.79 and 21,606.18

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Solution

The fourth proportional to 65,979.19, 98,968.79 and 21,606.18 is: 32,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.19 : 98,968.79 = 21,606.18 : x
  2. Step 2: Convert to fraction form
    65,979.19/98,968.79 = 21,606.18/x
  3. Step 3: Cross multiply
    65,979.19x = 98,968.79 × 21,606.18
  4. Step 4: Simplify right side
    65,979.19x = 2,138,337,491.12
  5. Step 5: Solve for x
    x = 2,138,337,491.12/65,979.19
  6. Step 6: Final answer
    x = 32,409.27

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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.