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Finding the Fourth Proportional to 64,697.96, 89,283.02 and 36,403.68

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Solution

The fourth proportional to 64,697.96, 89,283.02 and 36,403.68 is: 50,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,697.96 : 89,283.02 = 36,403.68 : x
  2. Step 2: Convert to fraction form
    64,697.96/89,283.02 = 36,403.68/x
  3. Step 3: Cross multiply
    64,697.96x = 89,283.02 × 36,403.68
  4. Step 4: Simplify right side
    64,697.96x = 3,250,230,489.51
  5. Step 5: Solve for x
    x = 3,250,230,489.51/64,697.96
  6. Step 6: Final answer
    x = 50,236.99

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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.