Home / 78,334.36-108,101.66-42,524.39

Finding the Fourth Proportional to 78,334.36, 108,101.66 and 42,524.39

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Solution

The fourth proportional to 78,334.36, 108,101.66 and 42,524.39 is: 58,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,334.36 : 108,101.66 = 42,524.39 : x
  2. Step 2: Convert to fraction form
    78,334.36/108,101.66 = 42,524.39/x
  3. Step 3: Cross multiply
    78,334.36x = 108,101.66 × 42,524.39
  4. Step 4: Simplify right side
    78,334.36x = 4,596,956,936.87
  5. Step 5: Solve for x
    x = 4,596,956,936.87/78,334.36
  6. Step 6: Final answer
    x = 58,683.79

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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.