Home / 90,586.37-125,020.72-54,776.64

Finding the Fourth Proportional to 90,586.37, 125,020.72 and 54,776.64

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Solution

The fourth proportional to 90,586.37, 125,020.72 and 54,776.64 is: 75,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,586.37 : 125,020.72 = 54,776.64 : x
  2. Step 2: Convert to fraction form
    90,586.37/125,020.72 = 54,776.64/x
  3. Step 3: Cross multiply
    90,586.37x = 125,020.72 × 54,776.64
  4. Step 4: Simplify right side
    90,586.37x = 6,848,214,971.98
  5. Step 5: Solve for x
    x = 6,848,214,971.98/90,586.37
  6. Step 6: Final answer
    x = 75,598.73

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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.