Home / 92,787.93-139,166.10-30,458.43

Finding the Fourth Proportional to 92,787.93, 139,166.10 and 30,458.43

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Solution

The fourth proportional to 92,787.93, 139,166.10 and 30,458.43 is: 45,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,787.93 : 139,166.10 = 30,458.43 : x
  2. Step 2: Convert to fraction form
    92,787.93/139,166.10 = 30,458.43/x
  3. Step 3: Cross multiply
    92,787.93x = 139,166.10 × 30,458.43
  4. Step 4: Simplify right side
    92,787.93x = 4,238,780,915.22
  5. Step 5: Solve for x
    x = 4,238,780,915.22/92,787.93
  6. Step 6: Final answer
    x = 45,682.46

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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.