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Finding the Fourth Proportional to 57,642.49, 79,459.54 and 45,045.37

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Solution

The fourth proportional to 57,642.49, 79,459.54 and 45,045.37 is: 62,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,642.49 : 79,459.54 = 45,045.37 : x
  2. Step 2: Convert to fraction form
    57,642.49/79,459.54 = 45,045.37/x
  3. Step 3: Cross multiply
    57,642.49x = 79,459.54 × 45,045.37
  4. Step 4: Simplify right side
    57,642.49x = 3,579,284,379.33
  5. Step 5: Solve for x
    x = 3,579,284,379.33/57,642.49
  6. Step 6: Final answer
    x = 62,094.55

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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.