Home / 72,598.35-100,190.70-40,336.86

Finding the Fourth Proportional to 72,598.35, 100,190.70 and 40,336.86

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Solution

The fourth proportional to 72,598.35, 100,190.70 and 40,336.86 is: 55,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,598.35 : 100,190.70 = 40,336.86 : x
  2. Step 2: Convert to fraction form
    72,598.35/100,190.70 = 40,336.86/x
  3. Step 3: Cross multiply
    72,598.35x = 100,190.70 × 40,336.86
  4. Step 4: Simplify right side
    72,598.35x = 4,041,378,239.20
  5. Step 5: Solve for x
    x = 4,041,378,239.20/72,598.35
  6. Step 6: Final answer
    x = 55,667.63

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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.