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Finding the Fourth Proportional to 64,778.76, 89,391.24 and 36,482.63

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Solution

The fourth proportional to 64,778.76, 89,391.24 and 36,482.63 is: 50,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.76 : 89,391.24 = 36,482.63 : x
  2. Step 2: Convert to fraction form
    64,778.76/89,391.24 = 36,482.63/x
  3. Step 3: Cross multiply
    64,778.76x = 89,391.24 × 36,482.63
  4. Step 4: Simplify right side
    64,778.76x = 3,261,227,087.21
  5. Step 5: Solve for x
    x = 3,261,227,087.21/64,778.76
  6. Step 6: Final answer
    x = 50,344.08

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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.