Home / 84,206.60-126,282.56-28,031.62

Finding the Fourth Proportional to 84,206.60, 126,282.56 and 28,031.62

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Solution

The fourth proportional to 84,206.60, 126,282.56 and 28,031.62 is: 42,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,206.60 : 126,282.56 = 28,031.62 : x
  2. Step 2: Convert to fraction form
    84,206.60/126,282.56 = 28,031.62/x
  3. Step 3: Cross multiply
    84,206.60x = 126,282.56 × 28,031.62
  4. Step 4: Simplify right side
    84,206.60x = 3,539,904,734.55
  5. Step 5: Solve for x
    x = 3,539,904,734.55/84,206.60
  6. Step 6: Final answer
    x = 42,038.33

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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.