Home / 45,753.15-68,574.36-20,768.04

Finding the Fourth Proportional to 45,753.15, 68,574.36 and 20,768.04

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Solution

The fourth proportional to 45,753.15, 68,574.36 and 20,768.04 is: 31,126.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,753.15 : 68,574.36 = 20,768.04 : x
  2. Step 2: Convert to fraction form
    45,753.15/68,574.36 = 20,768.04/x
  3. Step 3: Cross multiply
    45,753.15x = 68,574.36 × 20,768.04
  4. Step 4: Simplify right side
    45,753.15x = 1,424,155,051.45
  5. Step 5: Solve for x
    x = 1,424,155,051.45/45,753.15
  6. Step 6: Final answer
    x = 31,126.93

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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.