Home / 74,787.96-112,178.82-30,413

Finding the Fourth Proportional to 74,787.96, 112,178.82 and 30,413

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Solution

The fourth proportional to 74,787.96, 112,178.82 and 30,413 is: 45,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.96 : 112,178.82 = 30,413 : x
  2. Step 2: Convert to fraction form
    74,787.96/112,178.82 = 30,413/x
  3. Step 3: Cross multiply
    74,787.96x = 112,178.82 × 30,413
  4. Step 4: Simplify right side
    74,787.96x = 3,411,694,452.66
  5. Step 5: Solve for x
    x = 3,411,694,452.66/74,787.96
  6. Step 6: Final answer
    x = 45,618.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.