Home / 72,731.11-100,245.58-55,497.55

Finding the Fourth Proportional to 72,731.11, 100,245.58 and 55,497.55

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Solution

The fourth proportional to 72,731.11, 100,245.58 and 55,497.55 is: 76,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,731.11 : 100,245.58 = 55,497.55 : x
  2. Step 2: Convert to fraction form
    72,731.11/100,245.58 = 55,497.55/x
  3. Step 3: Cross multiply
    72,731.11x = 100,245.58 × 55,497.55
  4. Step 4: Simplify right side
    72,731.11x = 5,563,384,088.33
  5. Step 5: Solve for x
    x = 5,563,384,088.33/72,731.11
  6. Step 6: Final answer
    x = 76,492.50

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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.