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Finding the Fourth Proportional to 64,526, 89,045.88 and 36,231.72

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Solution

The fourth proportional to 64,526, 89,045.88 and 36,231.72 is: 49,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,526 : 89,045.88 = 36,231.72 : x
  2. Step 2: Convert to fraction form
    64,526/89,045.88 = 36,231.72/x
  3. Step 3: Cross multiply
    64,526x = 89,045.88 × 36,231.72
  4. Step 4: Simplify right side
    64,526x = 3,226,285,391.31
  5. Step 5: Solve for x
    x = 3,226,285,391.31/64,526
  6. Step 6: Final answer
    x = 49,999.77

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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.