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Finding the Fourth Proportional to 64,253.78, 88,657.65 and 40,366.65

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Solution

The fourth proportional to 64,253.78, 88,657.65 and 40,366.65 is: 55,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,253.78 : 88,657.65 = 40,366.65 : x
  2. Step 2: Convert to fraction form
    64,253.78/88,657.65 = 40,366.65/x
  3. Step 3: Cross multiply
    64,253.78x = 88,657.65 × 40,366.65
  4. Step 4: Simplify right side
    64,253.78x = 3,578,812,327.37
  5. Step 5: Solve for x
    x = 3,578,812,327.37/64,253.78
  6. Step 6: Final answer
    x = 55,698.09

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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.