Home / 81,023.52-111,835.92-47,039.64

Finding the Fourth Proportional to 81,023.52, 111,835.92 and 47,039.64

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Solution

The fourth proportional to 81,023.52, 111,835.92 and 47,039.64 is: 64,928.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023.52 : 111,835.92 = 47,039.64 : x
  2. Step 2: Convert to fraction form
    81,023.52/111,835.92 = 47,039.64/x
  3. Step 3: Cross multiply
    81,023.52x = 111,835.92 × 47,039.64
  4. Step 4: Simplify right side
    81,023.52x = 5,260,721,415.87
  5. Step 5: Solve for x
    x = 5,260,721,415.87/81,023.52
  6. Step 6: Final answer
    x = 64,928.32

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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.