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Finding the Fourth Proportional to 65,105.60, 97,639.20 and 25,649.60

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Solution

The fourth proportional to 65,105.60, 97,639.20 and 25,649.60 is: 38,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,105.60 : 97,639.20 = 25,649.60 : x
  2. Step 2: Convert to fraction form
    65,105.60/97,639.20 = 25,649.60/x
  3. Step 3: Cross multiply
    65,105.60x = 97,639.20 × 25,649.60
  4. Step 4: Simplify right side
    65,105.60x = 2,504,406,424.32
  5. Step 5: Solve for x
    x = 2,504,406,424.32/65,105.60
  6. Step 6: Final answer
    x = 38,466.84

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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.