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Finding the Fourth Proportional to 53,219.56, 79,878.80 and 26,942.92

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Solution

The fourth proportional to 53,219.56, 79,878.80 and 26,942.92 is: 40,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,219.56 : 79,878.80 = 26,942.92 : x
  2. Step 2: Convert to fraction form
    53,219.56/79,878.80 = 26,942.92/x
  3. Step 3: Cross multiply
    53,219.56x = 79,878.80 × 26,942.92
  4. Step 4: Simplify right side
    53,219.56x = 2,152,168,118.10
  5. Step 5: Solve for x
    x = 2,152,168,118.10/53,219.56
  6. Step 6: Final answer
    x = 40,439.42

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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.