Home / 45,012.26-67,512.79-28,146.74

Finding the Fourth Proportional to 45,012.26, 67,512.79 and 28,146.74

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Solution

The fourth proportional to 45,012.26, 67,512.79 and 28,146.74 is: 42,216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,012.26 : 67,512.79 = 28,146.74 : x
  2. Step 2: Convert to fraction form
    45,012.26/67,512.79 = 28,146.74/x
  3. Step 3: Cross multiply
    45,012.26x = 67,512.79 × 28,146.74
  4. Step 4: Simplify right side
    45,012.26x = 1,900,265,024.18
  5. Step 5: Solve for x
    x = 1,900,265,024.18/45,012.26
  6. Step 6: Final answer
    x = 42,216.61

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1.5x scale

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.