Home / 74,913.32-103,376.42-40,921.31

Finding the Fourth Proportional to 74,913.32, 103,376.42 and 40,921.31

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Solution

The fourth proportional to 74,913.32, 103,376.42 and 40,921.31 is: 56,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,913.32 : 103,376.42 = 40,921.31 : x
  2. Step 2: Convert to fraction form
    74,913.32/103,376.42 = 40,921.31/x
  3. Step 3: Cross multiply
    74,913.32x = 103,376.42 × 40,921.31
  4. Step 4: Simplify right side
    74,913.32x = 4,230,298,890.25
  5. Step 5: Solve for x
    x = 4,230,298,890.25/74,913.32
  6. Step 6: Final answer
    x = 56,469.25

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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.