Home / 57,271.60-85,909.56-15,721.84

Finding the Fourth Proportional to 57,271.60, 85,909.56 and 15,721.84

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Solution

The fourth proportional to 57,271.60, 85,909.56 and 15,721.84 is: 23,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.60 : 85,909.56 = 15,721.84 : x
  2. Step 2: Convert to fraction form
    57,271.60/85,909.56 = 15,721.84/x
  3. Step 3: Cross multiply
    57,271.60x = 85,909.56 × 15,721.84
  4. Step 4: Simplify right side
    57,271.60x = 1,350,656,356.79
  5. Step 5: Solve for x
    x = 1,350,656,356.79/57,271.60
  6. Step 6: Final answer
    x = 23,583.35

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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.