Home / 74,917.81-103,385.31-40,925.42

Finding the Fourth Proportional to 74,917.81, 103,385.31 and 40,925.42

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Solution

The fourth proportional to 74,917.81, 103,385.31 and 40,925.42 is: 56,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,917.81 : 103,385.31 = 40,925.42 : x
  2. Step 2: Convert to fraction form
    74,917.81/103,385.31 = 40,925.42/x
  3. Step 3: Cross multiply
    74,917.81x = 103,385.31 × 40,925.42
  4. Step 4: Simplify right side
    74,917.81x = 4,231,087,532.42
  5. Step 5: Solve for x
    x = 4,231,087,532.42/74,917.81
  6. Step 6: Final answer
    x = 56,476.39

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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.