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Finding the Fourth Proportional to 64,502.08, 89,012.96 and 36,216.96

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Solution

The fourth proportional to 64,502.08, 89,012.96 and 36,216.96 is: 49,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,502.08 : 89,012.96 = 36,216.96 : x
  2. Step 2: Convert to fraction form
    64,502.08/89,012.96 = 36,216.96/x
  3. Step 3: Cross multiply
    64,502.08x = 89,012.96 × 36,216.96
  4. Step 4: Simplify right side
    64,502.08x = 3,223,778,811.80
  5. Step 5: Solve for x
    x = 3,223,778,811.80/64,502.08
  6. Step 6: Final answer
    x = 49,979.46

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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.