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Finding the Fourth Proportional to 65,292.40, 97,876.63 and 20,896.30

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Solution

The fourth proportional to 65,292.40, 97,876.63 and 20,896.30 is: 31,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,292.40 : 97,876.63 = 20,896.30 : x
  2. Step 2: Convert to fraction form
    65,292.40/97,876.63 = 20,896.30/x
  3. Step 3: Cross multiply
    65,292.40x = 97,876.63 × 20,896.30
  4. Step 4: Simplify right side
    65,292.40x = 2,045,259,423.47
  5. Step 5: Solve for x
    x = 2,045,259,423.47/65,292.40
  6. Step 6: Final answer
    x = 31,324.62

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1.5x scale

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.