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Finding the Fourth Proportional to 64,688.79, 89,241.03 and 46,755.39

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Solution

The fourth proportional to 64,688.79, 89,241.03 and 46,755.39 is: 64,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,688.79 : 89,241.03 = 46,755.39 : x
  2. Step 2: Convert to fraction form
    64,688.79/89,241.03 = 46,755.39/x
  3. Step 3: Cross multiply
    64,688.79x = 89,241.03 × 46,755.39
  4. Step 4: Simplify right side
    64,688.79x = 4,172,499,161.65
  5. Step 5: Solve for x
    x = 4,172,499,161.65/64,688.79
  6. Step 6: Final answer
    x = 64,501.12

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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.