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Finding the Fourth Proportional to 56,630.20, 84,969.60 and 28,928.20

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Solution

The fourth proportional to 56,630.20, 84,969.60 and 28,928.20 is: 43,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,630.20 : 84,969.60 = 28,928.20 : x
  2. Step 2: Convert to fraction form
    56,630.20/84,969.60 = 28,928.20/x
  3. Step 3: Cross multiply
    56,630.20x = 84,969.60 × 28,928.20
  4. Step 4: Simplify right side
    56,630.20x = 2,458,017,582.72
  5. Step 5: Solve for x
    x = 2,458,017,582.72/56,630.20
  6. Step 6: Final answer
    x = 43,404.71

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1.5x scale

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.