Home / 90,889.89-125,428.26-50,601.70

Finding the Fourth Proportional to 90,889.89, 125,428.26 and 50,601.70

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Solution

The fourth proportional to 90,889.89, 125,428.26 and 50,601.70 is: 69,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889.89 : 125,428.26 = 50,601.70 : x
  2. Step 2: Convert to fraction form
    90,889.89/125,428.26 = 50,601.70/x
  3. Step 3: Cross multiply
    90,889.89x = 125,428.26 × 50,601.70
  4. Step 4: Simplify right side
    90,889.89x = 6,346,883,184.04
  5. Step 5: Solve for x
    x = 6,346,883,184.04/90,889.89
  6. Step 6: Final answer
    x = 69,830.46

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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.