Home / 65,568.20-98,328.30-21,206.60

Finding the Fourth Proportional to 65,568.20, 98,328.30 and 21,206.60

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Solution

The fourth proportional to 65,568.20, 98,328.30 and 21,206.60 is: 31,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,568.20 : 98,328.30 = 21,206.60 : x
  2. Step 2: Convert to fraction form
    65,568.20/98,328.30 = 21,206.60/x
  3. Step 3: Cross multiply
    65,568.20x = 98,328.30 × 21,206.60
  4. Step 4: Simplify right side
    65,568.20x = 2,085,208,926.78
  5. Step 5: Solve for x
    x = 2,085,208,926.78/65,568.20
  6. Step 6: Final answer
    x = 31,802.14

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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.