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Finding the Fourth Proportional to 45,654.32, 68,476.04 and 12,372.32

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Solution

The fourth proportional to 45,654.32, 68,476.04 and 12,372.32 is: 18,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,654.32 : 68,476.04 = 12,372.32 : x
  2. Step 2: Convert to fraction form
    45,654.32/68,476.04 = 12,372.32/x
  3. Step 3: Cross multiply
    45,654.32x = 68,476.04 × 12,372.32
  4. Step 4: Simplify right side
    45,654.32x = 847,207,479.21
  5. Step 5: Solve for x
    x = 847,207,479.21/45,654.32
  6. Step 6: Final answer
    x = 18,557.01

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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.