Home / 95,079.90-142,636.80-31,920.58

Finding the Fourth Proportional to 95,079.90, 142,636.80 and 31,920.58

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Solution

The fourth proportional to 95,079.90, 142,636.80 and 31,920.58 is: 47,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,079.90 : 142,636.80 = 31,920.58 : x
  2. Step 2: Convert to fraction form
    95,079.90/142,636.80 = 31,920.58/x
  3. Step 3: Cross multiply
    95,079.90x = 142,636.80 × 31,920.58
  4. Step 4: Simplify right side
    95,079.90x = 4,553,048,672.16
  5. Step 5: Solve for x
    x = 4,553,048,672.16/95,079.90
  6. Step 6: Final answer
    x = 47,886.55

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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.