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Finding the Fourth Proportional to 64,894.68, 89,551.76 and 36,212.78

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Solution

The fourth proportional to 64,894.68, 89,551.76 and 36,212.78 is: 49,972.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.68 : 89,551.76 = 36,212.78 : x
  2. Step 2: Convert to fraction form
    64,894.68/89,551.76 = 36,212.78/x
  3. Step 3: Cross multiply
    64,894.68x = 89,551.76 × 36,212.78
  4. Step 4: Simplify right side
    64,894.68x = 3,242,918,226.31
  5. Step 5: Solve for x
    x = 3,242,918,226.31/64,894.68
  6. Step 6: Final answer
    x = 49,972.02

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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.