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Finding the Fourth Proportional to 64,956.25, 89,639.63 and 35,148.25

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Solution

The fourth proportional to 64,956.25, 89,639.63 and 35,148.25 is: 48,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,956.25 : 89,639.63 = 35,148.25 : x
  2. Step 2: Convert to fraction form
    64,956.25/89,639.63 = 35,148.25/x
  3. Step 3: Cross multiply
    64,956.25x = 89,639.63 × 35,148.25
  4. Step 4: Simplify right side
    64,956.25x = 3,150,676,125.15
  5. Step 5: Solve for x
    x = 3,150,676,125.15/64,956.25
  6. Step 6: Final answer
    x = 48,504.59

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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.