Home / 78,228.36-107,955-43,773.12

Finding the Fourth Proportional to 78,228.36, 107,955 and 43,773.12

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Solution

The fourth proportional to 78,228.36, 107,955 and 43,773.12 is: 60,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,228.36 : 107,955 = 43,773.12 : x
  2. Step 2: Convert to fraction form
    78,228.36/107,955 = 43,773.12/x
  3. Step 3: Cross multiply
    78,228.36x = 107,955 × 43,773.12
  4. Step 4: Simplify right side
    78,228.36x = 4,725,527,169.60
  5. Step 5: Solve for x
    x = 4,725,527,169.60/78,228.36
  6. Step 6: Final answer
    x = 60,406.83

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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.