Home / 128,577.33-192,896.55-53,655.84

Finding the Fourth Proportional to 128,577.33, 192,896.55 and 53,655.84

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Solution

The fourth proportional to 128,577.33, 192,896.55 and 53,655.84 is: 80,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.33 : 192,896.55 = 53,655.84 : x
  2. Step 2: Convert to fraction form
    128,577.33/192,896.55 = 53,655.84/x
  3. Step 3: Cross multiply
    128,577.33x = 192,896.55 × 53,655.84
  4. Step 4: Simplify right side
    128,577.33x = 10,350,026,423.35
  5. Step 5: Solve for x
    x = 10,350,026,423.35/128,577.33
  6. Step 6: Final answer
    x = 80,496.51

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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.