Home / 83,497.32-125,289.05-39,128.58

Finding the Fourth Proportional to 83,497.32, 125,289.05 and 39,128.58

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Solution

The fourth proportional to 83,497.32, 125,289.05 and 39,128.58 is: 58,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,497.32 : 125,289.05 = 39,128.58 : x
  2. Step 2: Convert to fraction form
    83,497.32/125,289.05 = 39,128.58/x
  3. Step 3: Cross multiply
    83,497.32x = 125,289.05 × 39,128.58
  4. Step 4: Simplify right side
    83,497.32x = 4,902,382,420.41
  5. Step 5: Solve for x
    x = 4,902,382,420.41/83,497.32
  6. Step 6: Final answer
    x = 58,713.05

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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.