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Finding the Fourth Proportional to 57,393.82, 79,167.72 and 39,457.68

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Solution

The fourth proportional to 57,393.82, 79,167.72 and 39,457.68 is: 54,427.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.82 : 79,167.72 = 39,457.68 : x
  2. Step 2: Convert to fraction form
    57,393.82/79,167.72 = 39,457.68/x
  3. Step 3: Cross multiply
    57,393.82x = 79,167.72 × 39,457.68
  4. Step 4: Simplify right side
    57,393.82x = 3,123,774,562.09
  5. Step 5: Solve for x
    x = 3,123,774,562.09/57,393.82
  6. Step 6: Final answer
    x = 54,427.02

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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.