Home / 55,942.40-83,836.80-45,574.40

Finding the Fourth Proportional to 55,942.40, 83,836.80 and 45,574.40

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Solution

The fourth proportional to 55,942.40, 83,836.80 and 45,574.40 is: 68,299.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,942.40 : 83,836.80 = 45,574.40 : x
  2. Step 2: Convert to fraction form
    55,942.40/83,836.80 = 45,574.40/x
  3. Step 3: Cross multiply
    55,942.40x = 83,836.80 × 45,574.40
  4. Step 4: Simplify right side
    55,942.40x = 3,820,811,857.92
  5. Step 5: Solve for x
    x = 3,820,811,857.92/55,942.40
  6. Step 6: Final answer
    x = 68,299.03

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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.