Home / 57,709.10-79,588.36-40,683.30

Finding the Fourth Proportional to 57,709.10, 79,588.36 and 40,683.30

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Solution

The fourth proportional to 57,709.10, 79,588.36 and 40,683.30 is: 56,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.10 : 79,588.36 = 40,683.30 : x
  2. Step 2: Convert to fraction form
    57,709.10/79,588.36 = 40,683.30/x
  3. Step 3: Cross multiply
    57,709.10x = 79,588.36 × 40,683.30
  4. Step 4: Simplify right side
    57,709.10x = 3,237,917,126.39
  5. Step 5: Solve for x
    x = 3,237,917,126.39/57,709.10
  6. Step 6: Final answer
    x = 56,107.57

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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.