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Finding the Fourth Proportional to 64,770.96, 89,385.56 and 36,477.60

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Solution

The fourth proportional to 64,770.96, 89,385.56 and 36,477.60 is: 50,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,770.96 : 89,385.56 = 36,477.60 : x
  2. Step 2: Convert to fraction form
    64,770.96/89,385.56 = 36,477.60/x
  3. Step 3: Cross multiply
    64,770.96x = 89,385.56 × 36,477.60
  4. Step 4: Simplify right side
    64,770.96x = 3,260,570,703.46
  5. Step 5: Solve for x
    x = 3,260,570,703.46/64,770.96
  6. Step 6: Final answer
    x = 50,340.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.