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Finding the Fourth Proportional to 64,757.87, 89,368.61 and 36,077.51

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Solution

The fourth proportional to 64,757.87, 89,368.61 and 36,077.51 is: 49,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,757.87 : 89,368.61 = 36,077.51 : x
  2. Step 2: Convert to fraction form
    64,757.87/89,368.61 = 36,077.51/x
  3. Step 3: Cross multiply
    64,757.87x = 89,368.61 × 36,077.51
  4. Step 4: Simplify right side
    64,757.87x = 3,224,197,234.58
  5. Step 5: Solve for x
    x = 3,224,197,234.58/64,757.87
  6. Step 6: Final answer
    x = 49,788.50

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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.