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Finding the Fourth Proportional to 45,601.40, 68,402.10 and 28,014.20

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Solution

The fourth proportional to 45,601.40, 68,402.10 and 28,014.20 is: 42,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,601.40 : 68,402.10 = 28,014.20 : x
  2. Step 2: Convert to fraction form
    45,601.40/68,402.10 = 28,014.20/x
  3. Step 3: Cross multiply
    45,601.40x = 68,402.10 × 28,014.20
  4. Step 4: Simplify right side
    45,601.40x = 1,916,230,109.82
  5. Step 5: Solve for x
    x = 1,916,230,109.82/45,601.40
  6. Step 6: Final answer
    x = 42,021.30

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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.