Home / 54,099.20-81,148.80-40,977.20

Finding the Fourth Proportional to 54,099.20, 81,148.80 and 40,977.20

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Solution

The fourth proportional to 54,099.20, 81,148.80 and 40,977.20 is: 61,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,099.20 : 81,148.80 = 40,977.20 : x
  2. Step 2: Convert to fraction form
    54,099.20/81,148.80 = 40,977.20/x
  3. Step 3: Cross multiply
    54,099.20x = 81,148.80 × 40,977.20
  4. Step 4: Simplify right side
    54,099.20x = 3,325,250,607.36
  5. Step 5: Solve for x
    x = 3,325,250,607.36/54,099.20
  6. Step 6: Final answer
    x = 61,465.80

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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.