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Finding the Fourth Proportional to 57,989.79, 80,018.43 and 34,107.75

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Solution

The fourth proportional to 57,989.79, 80,018.43 and 34,107.75 is: 47,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989.79 : 80,018.43 = 34,107.75 : x
  2. Step 2: Convert to fraction form
    57,989.79/80,018.43 = 34,107.75/x
  3. Step 3: Cross multiply
    57,989.79x = 80,018.43 × 34,107.75
  4. Step 4: Simplify right side
    57,989.79x = 2,729,248,605.83
  5. Step 5: Solve for x
    x = 2,729,248,605.83/57,989.79
  6. Step 6: Final answer
    x = 47,064.30

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1.5x scale

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.