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Finding the Fourth Proportional to 64,738.71, 89,347.94 and 36,449.91

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Solution

The fourth proportional to 64,738.71, 89,347.94 and 36,449.91 is: 50,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,738.71 : 89,347.94 = 36,449.91 : x
  2. Step 2: Convert to fraction form
    64,738.71/89,347.94 = 36,449.91/x
  3. Step 3: Cross multiply
    64,738.71x = 89,347.94 × 36,449.91
  4. Step 4: Simplify right side
    64,738.71x = 3,256,724,189.44
  5. Step 5: Solve for x
    x = 3,256,724,189.44/64,738.71
  6. Step 6: Final answer
    x = 50,305.67

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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.