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Finding the Fourth Proportional to 56,642.01, 78,157.22 and 32,770.90

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Solution

The fourth proportional to 56,642.01, 78,157.22 and 32,770.90 is: 45,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,642.01 : 78,157.22 = 32,770.90 : x
  2. Step 2: Convert to fraction form
    56,642.01/78,157.22 = 32,770.90/x
  3. Step 3: Cross multiply
    56,642.01x = 78,157.22 × 32,770.90
  4. Step 4: Simplify right side
    56,642.01x = 2,561,282,374.74
  5. Step 5: Solve for x
    x = 2,561,282,374.74/56,642.01
  6. Step 6: Final answer
    x = 45,218.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.