Home / 40,808.20-61,212.30-26,811.40

Finding the Fourth Proportional to 40,808.20, 61,212.30 and 26,811.40

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Solution

The fourth proportional to 40,808.20, 61,212.30 and 26,811.40 is: 40,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,808.20 : 61,212.30 = 26,811.40 : x
  2. Step 2: Convert to fraction form
    40,808.20/61,212.30 = 26,811.40/x
  3. Step 3: Cross multiply
    40,808.20x = 61,212.30 × 26,811.40
  4. Step 4: Simplify right side
    40,808.20x = 1,641,187,460.22
  5. Step 5: Solve for x
    x = 1,641,187,460.22/40,808.20
  6. Step 6: Final answer
    x = 40,217.10

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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.