Home / 55,928.88-83,907.90-20,871.27

Finding the Fourth Proportional to 55,928.88, 83,907.90 and 20,871.27

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Solution

The fourth proportional to 55,928.88, 83,907.90 and 20,871.27 is: 31,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,928.88 : 83,907.90 = 20,871.27 : x
  2. Step 2: Convert to fraction form
    55,928.88/83,907.90 = 20,871.27/x
  3. Step 3: Cross multiply
    55,928.88x = 83,907.90 × 20,871.27
  4. Step 4: Simplify right side
    55,928.88x = 1,751,264,436.03
  5. Step 5: Solve for x
    x = 1,751,264,436.03/55,928.88
  6. Step 6: Final answer
    x = 31,312.35

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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.