Home / 45,120.74-62,239.38-28,982.62

Finding the Fourth Proportional to 45,120.74, 62,239.38 and 28,982.62

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Solution

The fourth proportional to 45,120.74, 62,239.38 and 28,982.62 is: 39,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.74 : 62,239.38 = 28,982.62 : x
  2. Step 2: Convert to fraction form
    45,120.74/62,239.38 = 28,982.62/x
  3. Step 3: Cross multiply
    45,120.74x = 62,239.38 × 28,982.62
  4. Step 4: Simplify right side
    45,120.74x = 1,803,860,299.58
  5. Step 5: Solve for x
    x = 1,803,860,299.58/45,120.74
  6. Step 6: Final answer
    x = 39,978.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.