Home / 90,588.37-125,023.48-54,778.64

Finding the Fourth Proportional to 90,588.37, 125,023.48 and 54,778.64

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Solution

The fourth proportional to 90,588.37, 125,023.48 and 54,778.64 is: 75,601.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,588.37 : 125,023.48 = 54,778.64 : x
  2. Step 2: Convert to fraction form
    90,588.37/125,023.48 = 54,778.64/x
  3. Step 3: Cross multiply
    90,588.37x = 125,023.48 × 54,778.64
  4. Step 4: Simplify right side
    90,588.37x = 6,848,616,202.47
  5. Step 5: Solve for x
    x = 6,848,616,202.47/90,588.37
  6. Step 6: Final answer
    x = 75,601.50

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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.