Home / 57,340.24-79,128-31,845.84

Finding the Fourth Proportional to 57,340.24, 79,128 and 31,845.84

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Solution

The fourth proportional to 57,340.24, 79,128 and 31,845.84 is: 43,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,340.24 : 79,128 = 31,845.84 : x
  2. Step 2: Convert to fraction form
    57,340.24/79,128 = 31,845.84/x
  3. Step 3: Cross multiply
    57,340.24x = 79,128 × 31,845.84
  4. Step 4: Simplify right side
    57,340.24x = 2,519,897,627.52
  5. Step 5: Solve for x
    x = 2,519,897,627.52/57,340.24
  6. Step 6: Final answer
    x = 43,946.41

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1.5x scale

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.