Home / 57,018.80-78,577.08-49,553.84

Finding the Fourth Proportional to 57,018.80, 78,577.08 and 49,553.84

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Solution

The fourth proportional to 57,018.80, 78,577.08 and 49,553.84 is: 68,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.80 : 78,577.08 = 49,553.84 : x
  2. Step 2: Convert to fraction form
    57,018.80/78,577.08 = 49,553.84/x
  3. Step 3: Cross multiply
    57,018.80x = 78,577.08 × 49,553.84
  4. Step 4: Simplify right side
    57,018.80x = 3,893,796,049.99
  5. Step 5: Solve for x
    x = 3,893,796,049.99/57,018.80
  6. Step 6: Final answer
    x = 68,289.69

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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.