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Finding the Fourth Proportional to 40,302.20, 56,481.40 and 40,302.20

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Solution

The fourth proportional to 40,302.20, 56,481.40 and 40,302.20 is: 56,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.20 : 56,481.40 = 40,302.20 : x
  2. Step 2: Convert to fraction form
    40,302.20/56,481.40 = 40,302.20/x
  3. Step 3: Cross multiply
    40,302.20x = 56,481.40 × 40,302.20
  4. Step 4: Simplify right side
    40,302.20x = 2,276,324,679.08
  5. Step 5: Solve for x
    x = 2,276,324,679.08/40,302.20
  6. Step 6: Final answer
    x = 56,481.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.