Home / 128,594.55-192,821.36-39,823.41

Finding the Fourth Proportional to 128,594.55, 192,821.36 and 39,823.41

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Solution

The fourth proportional to 128,594.55, 192,821.36 and 39,823.41 is: 59,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,594.55 : 192,821.36 = 39,823.41 : x
  2. Step 2: Convert to fraction form
    128,594.55/192,821.36 = 39,823.41/x
  3. Step 3: Cross multiply
    128,594.55x = 192,821.36 × 39,823.41
  4. Step 4: Simplify right side
    128,594.55x = 7,678,804,076.04
  5. Step 5: Solve for x
    x = 7,678,804,076.04/128,594.55
  6. Step 6: Final answer
    x = 59,713.29

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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.