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Finding the Fourth Proportional to 81,498.92, 112,466.58 and 45,200.21

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Solution

The fourth proportional to 81,498.92, 112,466.58 and 45,200.21 is: 62,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.92 : 112,466.58 = 45,200.21 : x
  2. Step 2: Convert to fraction form
    81,498.92/112,466.58 = 45,200.21/x
  3. Step 3: Cross multiply
    81,498.92x = 112,466.58 × 45,200.21
  4. Step 4: Simplify right side
    81,498.92x = 5,083,513,033.98
  5. Step 5: Solve for x
    x = 5,083,513,033.98/81,498.92
  6. Step 6: Final answer
    x = 62,375.22

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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.