Home / 52,272.45-72,135.60-28,399.32

Finding the Fourth Proportional to 52,272.45, 72,135.60 and 28,399.32

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Solution

The fourth proportional to 52,272.45, 72,135.60 and 28,399.32 is: 39,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,272.45 : 72,135.60 = 28,399.32 : x
  2. Step 2: Convert to fraction form
    52,272.45/72,135.60 = 28,399.32/x
  3. Step 3: Cross multiply
    52,272.45x = 72,135.60 × 28,399.32
  4. Step 4: Simplify right side
    52,272.45x = 2,048,601,987.79
  5. Step 5: Solve for x
    x = 2,048,601,987.79/52,272.45
  6. Step 6: Final answer
    x = 39,190.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.