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Finding the Fourth Proportional to 65,215.20, 97,822.80 and 60,808.80

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Solution

The fourth proportional to 65,215.20, 97,822.80 and 60,808.80 is: 91,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.20 : 97,822.80 = 60,808.80 : x
  2. Step 2: Convert to fraction form
    65,215.20/97,822.80 = 60,808.80/x
  3. Step 3: Cross multiply
    65,215.20x = 97,822.80 × 60,808.80
  4. Step 4: Simplify right side
    65,215.20x = 5,948,487,080.64
  5. Step 5: Solve for x
    x = 5,948,487,080.64/65,215.20
  6. Step 6: Final answer
    x = 91,213.20

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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.