Home / 78,945.14-118,337.88-33,995.81

Finding the Fourth Proportional to 78,945.14, 118,337.88 and 33,995.81

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Solution

The fourth proportional to 78,945.14, 118,337.88 and 33,995.81 is: 50,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945.14 : 118,337.88 = 33,995.81 : x
  2. Step 2: Convert to fraction form
    78,945.14/118,337.88 = 33,995.81/x
  3. Step 3: Cross multiply
    78,945.14x = 118,337.88 × 33,995.81
  4. Step 4: Simplify right side
    78,945.14x = 4,022,991,492.59
  5. Step 5: Solve for x
    x = 4,022,991,492.59/78,945.14
  6. Step 6: Final answer
    x = 50,959.33

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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.