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Finding the Fourth Proportional to 57,678.99, 86,362.13 and 29,918.67

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Solution

The fourth proportional to 57,678.99, 86,362.13 and 29,918.67 is: 44,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,678.99 : 86,362.13 = 29,918.67 : x
  2. Step 2: Convert to fraction form
    57,678.99/86,362.13 = 29,918.67/x
  3. Step 3: Cross multiply
    57,678.99x = 86,362.13 × 29,918.67
  4. Step 4: Simplify right side
    57,678.99x = 2,583,840,067.97
  5. Step 5: Solve for x
    x = 2,583,840,067.97/57,678.99
  6. Step 6: Final answer
    x = 44,796.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.