Home / 128,595.55-192,822.86-39,824.41

Finding the Fourth Proportional to 128,595.55, 192,822.86 and 39,824.41

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Solution

The fourth proportional to 128,595.55, 192,822.86 and 39,824.41 is: 59,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,595.55 : 192,822.86 = 39,824.41 : x
  2. Step 2: Convert to fraction form
    128,595.55/192,822.86 = 39,824.41/x
  3. Step 3: Cross multiply
    128,595.55x = 192,822.86 × 39,824.41
  4. Step 4: Simplify right side
    128,595.55x = 7,679,056,634.01
  5. Step 5: Solve for x
    x = 7,679,056,634.01/128,595.55
  6. Step 6: Final answer
    x = 59,714.79

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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.