Home / 53,899.20-80,848.80-40,777.20

Finding the Fourth Proportional to 53,899.20, 80,848.80 and 40,777.20

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Solution

The fourth proportional to 53,899.20, 80,848.80 and 40,777.20 is: 61,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,899.20 : 80,848.80 = 40,777.20 : x
  2. Step 2: Convert to fraction form
    53,899.20/80,848.80 = 40,777.20/x
  3. Step 3: Cross multiply
    53,899.20x = 80,848.80 × 40,777.20
  4. Step 4: Simplify right side
    53,899.20x = 3,296,787,687.36
  5. Step 5: Solve for x
    x = 3,296,787,687.36/53,899.20
  6. Step 6: Final answer
    x = 61,165.80

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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.