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Finding the Fourth Proportional to 56,144.32, 84,207.84 and 19,208.32

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Solution

The fourth proportional to 56,144.32, 84,207.84 and 19,208.32 is: 28,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,144.32 : 84,207.84 = 19,208.32 : x
  2. Step 2: Convert to fraction form
    56,144.32/84,207.84 = 19,208.32/x
  3. Step 3: Cross multiply
    56,144.32x = 84,207.84 × 19,208.32
  4. Step 4: Simplify right side
    56,144.32x = 1,617,491,137.23
  5. Step 5: Solve for x
    x = 1,617,491,137.23/56,144.32
  6. Step 6: Final answer
    x = 28,809.52

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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.