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Finding the Fourth Proportional to 68,873.10, 103,200.30 and 45,472.20

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Solution

The fourth proportional to 68,873.10, 103,200.30 and 45,472.20 is: 68,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,873.10 : 103,200.30 = 45,472.20 : x
  2. Step 2: Convert to fraction form
    68,873.10/103,200.30 = 45,472.20/x
  3. Step 3: Cross multiply
    68,873.10x = 103,200.30 × 45,472.20
  4. Step 4: Simplify right side
    68,873.10x = 4,692,744,681.66
  5. Step 5: Solve for x
    x = 4,692,744,681.66/68,873.10
  6. Step 6: Final answer
    x = 68,136.10

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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.