Home / 57,274.28-79,038.40-31,784.56

Finding the Fourth Proportional to 57,274.28, 79,038.40 and 31,784.56

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Solution

The fourth proportional to 57,274.28, 79,038.40 and 31,784.56 is: 43,862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,274.28 : 79,038.40 = 31,784.56 : x
  2. Step 2: Convert to fraction form
    57,274.28/79,038.40 = 31,784.56/x
  3. Step 3: Cross multiply
    57,274.28x = 79,038.40 × 31,784.56
  4. Step 4: Simplify right side
    57,274.28x = 2,512,200,767.10
  5. Step 5: Solve for x
    x = 2,512,200,767.10/57,274.28
  6. Step 6: Final answer
    x = 43,862.63

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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.