Home / 90,856.41-125,380.89-50,569.59

Finding the Fourth Proportional to 90,856.41, 125,380.89 and 50,569.59

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Solution

The fourth proportional to 90,856.41, 125,380.89 and 50,569.59 is: 69,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856.41 : 125,380.89 = 50,569.59 : x
  2. Step 2: Convert to fraction form
    90,856.41/125,380.89 = 50,569.59/x
  3. Step 3: Cross multiply
    90,856.41x = 125,380.89 × 50,569.59
  4. Step 4: Simplify right side
    90,856.41x = 6,340,460,201.14
  5. Step 5: Solve for x
    x = 6,340,460,201.14/90,856.41
  6. Step 6: Final answer
    x = 69,785.50

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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.