Home / 90,881.70-125,414.30-50,595.47

Finding the Fourth Proportional to 90,881.70, 125,414.30 and 50,595.47

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Solution

The fourth proportional to 90,881.70, 125,414.30 and 50,595.47 is: 69,820.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,881.70 : 125,414.30 = 50,595.47 : x
  2. Step 2: Convert to fraction form
    90,881.70/125,414.30 = 50,595.47/x
  3. Step 3: Cross multiply
    90,881.70x = 125,414.30 × 50,595.47
  4. Step 4: Simplify right side
    90,881.70x = 6,345,395,453.22
  5. Step 5: Solve for x
    x = 6,345,395,453.22/90,881.70
  6. Step 6: Final answer
    x = 69,820.39

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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.