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Finding the Fourth Proportional to 64,910.40, 97,365.60 and 36,819.60

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Solution

The fourth proportional to 64,910.40, 97,365.60 and 36,819.60 is: 55,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,910.40 : 97,365.60 = 36,819.60 : x
  2. Step 2: Convert to fraction form
    64,910.40/97,365.60 = 36,819.60/x
  3. Step 3: Cross multiply
    64,910.40x = 97,365.60 × 36,819.60
  4. Step 4: Simplify right side
    64,910.40x = 3,584,962,445.76
  5. Step 5: Solve for x
    x = 3,584,962,445.76/64,910.40
  6. Step 6: Final answer
    x = 55,229.40

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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.