Home / 171,928.10-257,928.60-51,975.20

Finding the Fourth Proportional to 171,928.10, 257,928.60 and 51,975.20

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Solution

The fourth proportional to 171,928.10, 257,928.60 and 51,975.20 is: 77,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,928.10 : 257,928.60 = 51,975.20 : x
  2. Step 2: Convert to fraction form
    171,928.10/257,928.60 = 51,975.20/x
  3. Step 3: Cross multiply
    171,928.10x = 257,928.60 × 51,975.20
  4. Step 4: Simplify right side
    171,928.10x = 13,405,890,570.72
  5. Step 5: Solve for x
    x = 13,405,890,570.72/171,928.10
  6. Step 6: Final answer
    x = 77,973.82

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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.