Home / 81,750.72-122,470.56-46,583.76

Finding the Fourth Proportional to 81,750.72, 122,470.56 and 46,583.76

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Solution

The fourth proportional to 81,750.72, 122,470.56 and 46,583.76 is: 69,787.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,750.72 : 122,470.56 = 46,583.76 : x
  2. Step 2: Convert to fraction form
    81,750.72/122,470.56 = 46,583.76/x
  3. Step 3: Cross multiply
    81,750.72x = 122,470.56 × 46,583.76
  4. Step 4: Simplify right side
    81,750.72x = 5,705,139,174.11
  5. Step 5: Solve for x
    x = 5,705,139,174.11/81,750.72
  6. Step 6: Final answer
    x = 69,787.02

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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.