Home / 90,601.86-125,020.62-51,840.12

Finding the Fourth Proportional to 90,601.86, 125,020.62 and 51,840.12

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Solution

The fourth proportional to 90,601.86, 125,020.62 and 51,840.12 is: 71,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,601.86 : 125,020.62 = 51,840.12 : x
  2. Step 2: Convert to fraction form
    90,601.86/125,020.62 = 51,840.12/x
  3. Step 3: Cross multiply
    90,601.86x = 125,020.62 × 51,840.12
  4. Step 4: Simplify right side
    90,601.86x = 6,481,083,943.27
  5. Step 5: Solve for x
    x = 6,481,083,943.27/90,601.86
  6. Step 6: Final answer
    x = 71,533.67

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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.