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Finding the Fourth Proportional to 64,659.60, 89,237.34 and 36,364.68

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Solution

The fourth proportional to 64,659.60, 89,237.34 and 36,364.68 is: 50,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,659.60 : 89,237.34 = 36,364.68 : x
  2. Step 2: Convert to fraction form
    64,659.60/89,237.34 = 36,364.68/x
  3. Step 3: Cross multiply
    64,659.60x = 89,237.34 × 36,364.68
  4. Step 4: Simplify right side
    64,659.60x = 3,245,087,313.15
  5. Step 5: Solve for x
    x = 3,245,087,313.15/64,659.60
  6. Step 6: Final answer
    x = 50,187.25

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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.