Home / 64,915.20-97,365.60-18,172.80

Finding the Fourth Proportional to 64,915.20, 97,365.60 and 18,172.80

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Solution

The fourth proportional to 64,915.20, 97,365.60 and 18,172.80 is: 27,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,915.20 : 97,365.60 = 18,172.80 : x
  2. Step 2: Convert to fraction form
    64,915.20/97,365.60 = 18,172.80/x
  3. Step 3: Cross multiply
    64,915.20x = 97,365.60 × 18,172.80
  4. Step 4: Simplify right side
    64,915.20x = 1,769,405,575.68
  5. Step 5: Solve for x
    x = 1,769,405,575.68/64,915.20
  6. Step 6: Final answer
    x = 27,257.18

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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.