Home / 92,945.40-139,264.20-53,433.60

Finding the Fourth Proportional to 92,945.40, 139,264.20 and 53,433.60

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Solution

The fourth proportional to 92,945.40, 139,264.20 and 53,433.60 is: 80,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,945.40 : 139,264.20 = 53,433.60 : x
  2. Step 2: Convert to fraction form
    92,945.40/139,264.20 = 53,433.60/x
  3. Step 3: Cross multiply
    92,945.40x = 139,264.20 × 53,433.60
  4. Step 4: Simplify right side
    92,945.40x = 7,441,387,557.12
  5. Step 5: Solve for x
    x = 7,441,387,557.12/92,945.40
  6. Step 6: Final answer
    x = 80,061.92

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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.