Home / 73,890.20-110,835.30-72,723.80

Finding the Fourth Proportional to 73,890.20, 110,835.30 and 72,723.80

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Solution

The fourth proportional to 73,890.20, 110,835.30 and 72,723.80 is: 109,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,890.20 : 110,835.30 = 72,723.80 : x
  2. Step 2: Convert to fraction form
    73,890.20/110,835.30 = 72,723.80/x
  3. Step 3: Cross multiply
    73,890.20x = 110,835.30 × 72,723.80
  4. Step 4: Simplify right side
    73,890.20x = 8,060,364,190.14
  5. Step 5: Solve for x
    x = 8,060,364,190.14/73,890.20
  6. Step 6: Final answer
    x = 109,085.70

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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.