Home / 101,941.89-140,679.79-56,624.07

Finding the Fourth Proportional to 101,941.89, 140,679.79 and 56,624.07

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Solution

The fourth proportional to 101,941.89, 140,679.79 and 56,624.07 is: 78,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,941.89 : 140,679.79 = 56,624.07 : x
  2. Step 2: Convert to fraction form
    101,941.89/140,679.79 = 56,624.07/x
  3. Step 3: Cross multiply
    101,941.89x = 140,679.79 × 56,624.07
  4. Step 4: Simplify right side
    101,941.89x = 7,965,862,662.53
  5. Step 5: Solve for x
    x = 7,965,862,662.53/101,941.89
  6. Step 6: Final answer
    x = 78,141.21

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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.