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Finding the Fourth Proportional to 64,739.25, 89,343.81 and 36,446.76

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Solution

The fourth proportional to 64,739.25, 89,343.81 and 36,446.76 is: 50,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,739.25 : 89,343.81 = 36,446.76 : x
  2. Step 2: Convert to fraction form
    64,739.25/89,343.81 = 36,446.76/x
  3. Step 3: Cross multiply
    64,739.25x = 89,343.81 × 36,446.76
  4. Step 4: Simplify right side
    64,739.25x = 3,256,292,400.56
  5. Step 5: Solve for x
    x = 3,256,292,400.56/64,739.25
  6. Step 6: Final answer
    x = 50,298.58

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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.