Home / 92,768.90-139,153.65-39,453.28

Finding the Fourth Proportional to 92,768.90, 139,153.65 and 39,453.28

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Solution

The fourth proportional to 92,768.90, 139,153.65 and 39,453.28 is: 59,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,768.90 : 139,153.65 = 39,453.28 : x
  2. Step 2: Convert to fraction form
    92,768.90/139,153.65 = 39,453.28/x
  3. Step 3: Cross multiply
    92,768.90x = 139,153.65 × 39,453.28
  4. Step 4: Simplify right side
    92,768.90x = 5,490,067,420.64
  5. Step 5: Solve for x
    x = 5,490,067,420.64/92,768.90
  6. Step 6: Final answer
    x = 59,180.05

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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.