Home / 92,982.58-128,348.87-55,256.38

Finding the Fourth Proportional to 92,982.58, 128,348.87 and 55,256.38

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Solution

The fourth proportional to 92,982.58, 128,348.87 and 55,256.38 is: 76,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,982.58 : 128,348.87 = 55,256.38 : x
  2. Step 2: Convert to fraction form
    92,982.58/128,348.87 = 55,256.38/x
  3. Step 3: Cross multiply
    92,982.58x = 128,348.87 × 55,256.38
  4. Step 4: Simplify right side
    92,982.58x = 7,092,093,015.26
  5. Step 5: Solve for x
    x = 7,092,093,015.26/92,982.58
  6. Step 6: Final answer
    x = 76,273.36

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1.5x scale

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.