Home / 81,628.60-122,313.30-60,633.40

Finding the Fourth Proportional to 81,628.60, 122,313.30 and 60,633.40

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Solution

The fourth proportional to 81,628.60, 122,313.30 and 60,633.40 is: 90,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628.60 : 122,313.30 = 60,633.40 : x
  2. Step 2: Convert to fraction form
    81,628.60/122,313.30 = 60,633.40/x
  3. Step 3: Cross multiply
    81,628.60x = 122,313.30 × 60,633.40
  4. Step 4: Simplify right side
    81,628.60x = 7,416,271,244.22
  5. Step 5: Solve for x
    x = 7,416,271,244.22/81,628.60
  6. Step 6: Final answer
    x = 90,853.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.