Home / 57,271.71-85,886.97-19,821.60

Finding the Fourth Proportional to 57,271.71, 85,886.97 and 19,821.60

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Solution

The fourth proportional to 57,271.71, 85,886.97 and 19,821.60 is: 29,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.71 : 85,886.97 = 19,821.60 : x
  2. Step 2: Convert to fraction form
    57,271.71/85,886.97 = 19,821.60/x
  3. Step 3: Cross multiply
    57,271.71x = 85,886.97 × 19,821.60
  4. Step 4: Simplify right side
    57,271.71x = 1,702,417,164.55
  5. Step 5: Solve for x
    x = 1,702,417,164.55/57,271.71
  6. Step 6: Final answer
    x = 29,725.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.