Home / 56,651.44-78,177.33-31,157.79

Finding the Fourth Proportional to 56,651.44, 78,177.33 and 31,157.79

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Solution

The fourth proportional to 56,651.44, 78,177.33 and 31,157.79 is: 42,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.44 : 78,177.33 = 31,157.79 : x
  2. Step 2: Convert to fraction form
    56,651.44/78,177.33 = 31,157.79/x
  3. Step 3: Cross multiply
    56,651.44x = 78,177.33 × 31,157.79
  4. Step 4: Simplify right side
    56,651.44x = 2,435,832,830.90
  5. Step 5: Solve for x
    x = 2,435,832,830.90/56,651.44
  6. Step 6: Final answer
    x = 42,996.84

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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.