Home / 74,939.28-103,383.72-45,114

Finding the Fourth Proportional to 74,939.28, 103,383.72 and 45,114

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Solution

The fourth proportional to 74,939.28, 103,383.72 and 45,114 is: 62,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.28 : 103,383.72 = 45,114 : x
  2. Step 2: Convert to fraction form
    74,939.28/103,383.72 = 45,114/x
  3. Step 3: Cross multiply
    74,939.28x = 103,383.72 × 45,114
  4. Step 4: Simplify right side
    74,939.28x = 4,664,053,144.08
  5. Step 5: Solve for x
    x = 4,664,053,144.08/74,939.28
  6. Step 6: Final answer
    x = 62,237.76

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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.