Home / 70,541.10-105,855.55-43,939.33

Finding the Fourth Proportional to 70,541.10, 105,855.55 and 43,939.33

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Solution

The fourth proportional to 70,541.10, 105,855.55 and 43,939.33 is: 65,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.10 : 105,855.55 = 43,939.33 : x
  2. Step 2: Convert to fraction form
    70,541.10/105,855.55 = 43,939.33/x
  3. Step 3: Cross multiply
    70,541.10x = 105,855.55 × 43,939.33
  4. Step 4: Simplify right side
    70,541.10x = 4,651,221,569.29
  5. Step 5: Solve for x
    x = 4,651,221,569.29/70,541.10
  6. Step 6: Final answer
    x = 65,936.33

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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.