Home / 57,340.56-79,128.73-31,845.51

Finding the Fourth Proportional to 57,340.56, 79,128.73 and 31,845.51

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Solution

The fourth proportional to 57,340.56, 79,128.73 and 31,845.51 is: 43,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,340.56 : 79,128.73 = 31,845.51 : x
  2. Step 2: Convert to fraction form
    57,340.56/79,128.73 = 31,845.51/x
  3. Step 3: Cross multiply
    57,340.56x = 79,128.73 × 31,845.51
  4. Step 4: Simplify right side
    57,340.56x = 2,519,894,762.50
  5. Step 5: Solve for x
    x = 2,519,894,762.50/57,340.56
  6. Step 6: Final answer
    x = 43,946.11

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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.