Home / 78,216.32-108,027.60-53,022.08

Finding the Fourth Proportional to 78,216.32, 108,027.60 and 53,022.08

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Solution

The fourth proportional to 78,216.32, 108,027.60 and 53,022.08 is: 73,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,216.32 : 108,027.60 = 53,022.08 : x
  2. Step 2: Convert to fraction form
    78,216.32/108,027.60 = 53,022.08/x
  3. Step 3: Cross multiply
    78,216.32x = 108,027.60 × 53,022.08
  4. Step 4: Simplify right side
    78,216.32x = 5,727,848,049.41
  5. Step 5: Solve for x
    x = 5,727,848,049.41/78,216.32
  6. Step 6: Final answer
    x = 73,230.86

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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.