Home / 90,414.15-124,771.56-50,128.41

Finding the Fourth Proportional to 90,414.15, 124,771.56 and 50,128.41

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Solution

The fourth proportional to 90,414.15, 124,771.56 and 50,128.41 is: 69,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,414.15 : 124,771.56 = 50,128.41 : x
  2. Step 2: Convert to fraction form
    90,414.15/124,771.56 = 50,128.41/x
  3. Step 3: Cross multiply
    90,414.15x = 124,771.56 × 50,128.41
  4. Step 4: Simplify right side
    90,414.15x = 6,254,599,916.02
  5. Step 5: Solve for x
    x = 6,254,599,916.02/90,414.15
  6. Step 6: Final answer
    x = 69,177.22

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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.