Home / 74,958.38-103,439.52-40,968

Finding the Fourth Proportional to 74,958.38, 103,439.52 and 40,968

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Solution

The fourth proportional to 74,958.38, 103,439.52 and 40,968 is: 56,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,958.38 : 103,439.52 = 40,968 : x
  2. Step 2: Convert to fraction form
    74,958.38/103,439.52 = 40,968/x
  3. Step 3: Cross multiply
    74,958.38x = 103,439.52 × 40,968
  4. Step 4: Simplify right side
    74,958.38x = 4,237,710,255.36
  5. Step 5: Solve for x
    x = 4,237,710,255.36/74,958.38
  6. Step 6: Final answer
    x = 56,534.18

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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.