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Finding the Fourth Proportional to 65,264.37, 97,908.80 and 20,879.20

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Solution

The fourth proportional to 65,264.37, 97,908.80 and 20,879.20 is: 31,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,264.37 : 97,908.80 = 20,879.20 : x
  2. Step 2: Convert to fraction form
    65,264.37/97,908.80 = 20,879.20/x
  3. Step 3: Cross multiply
    65,264.37x = 97,908.80 × 20,879.20
  4. Step 4: Simplify right side
    65,264.37x = 2,044,257,416.96
  5. Step 5: Solve for x
    x = 2,044,257,416.96/65,264.37
  6. Step 6: Final answer
    x = 31,322.72

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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.