Home / 57,769.20-86,653.80-47,271.60

Finding the Fourth Proportional to 57,769.20, 86,653.80 and 47,271.60

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Solution

The fourth proportional to 57,769.20, 86,653.80 and 47,271.60 is: 70,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.20 : 86,653.80 = 47,271.60 : x
  2. Step 2: Convert to fraction form
    57,769.20/86,653.80 = 47,271.60/x
  3. Step 3: Cross multiply
    57,769.20x = 86,653.80 × 47,271.60
  4. Step 4: Simplify right side
    57,769.20x = 4,096,263,772.08
  5. Step 5: Solve for x
    x = 4,096,263,772.08/57,769.20
  6. Step 6: Final answer
    x = 70,907.40

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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.