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Finding the Fourth Proportional to 56,651.44, 85,005.72 and 40,117.72

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Solution

The fourth proportional to 56,651.44, 85,005.72 and 40,117.72 is: 60,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.44 : 85,005.72 = 40,117.72 : x
  2. Step 2: Convert to fraction form
    56,651.44/85,005.72 = 40,117.72/x
  3. Step 3: Cross multiply
    56,651.44x = 85,005.72 × 40,117.72
  4. Step 4: Simplify right side
    56,651.44x = 3,410,235,673.36
  5. Step 5: Solve for x
    x = 3,410,235,673.36/56,651.44
  6. Step 6: Final answer
    x = 60,196.80

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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.