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Finding the Fourth Proportional to 63,397.44, 87,450.12 and 40,728.72

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Solution

The fourth proportional to 63,397.44, 87,450.12 and 40,728.72 is: 56,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,397.44 : 87,450.12 = 40,728.72 : x
  2. Step 2: Convert to fraction form
    63,397.44/87,450.12 = 40,728.72/x
  3. Step 3: Cross multiply
    63,397.44x = 87,450.12 × 40,728.72
  4. Step 4: Simplify right side
    63,397.44x = 3,561,731,451.45
  5. Step 5: Solve for x
    x = 3,561,731,451.45/63,397.44
  6. Step 6: Final answer
    x = 56,181.00

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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.