Home / 57,722.12-79,606.28-40,696.32

Finding the Fourth Proportional to 57,722.12, 79,606.28 and 40,696.32

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Solution

The fourth proportional to 57,722.12, 79,606.28 and 40,696.32 is: 56,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.12 : 79,606.28 = 40,696.32 : x
  2. Step 2: Convert to fraction form
    57,722.12/79,606.28 = 40,696.32/x
  3. Step 3: Cross multiply
    57,722.12x = 79,606.28 × 40,696.32
  4. Step 4: Simplify right side
    57,722.12x = 3,239,682,644.89
  5. Step 5: Solve for x
    x = 3,239,682,644.89/57,722.12
  6. Step 6: Final answer
    x = 56,125.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.