Home / 57,061.80-78,583.14-55,840.68

Finding the Fourth Proportional to 57,061.80, 78,583.14 and 55,840.68

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Solution

The fourth proportional to 57,061.80, 78,583.14 and 55,840.68 is: 76,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.80 : 78,583.14 = 55,840.68 : x
  2. Step 2: Convert to fraction form
    57,061.80/78,583.14 = 55,840.68/x
  3. Step 3: Cross multiply
    57,061.80x = 78,583.14 × 55,840.68
  4. Step 4: Simplify right side
    57,061.80x = 4,388,135,974.14
  5. Step 5: Solve for x
    x = 4,388,135,974.14/57,061.80
  6. Step 6: Final answer
    x = 76,901.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.