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Finding the Fourth Proportional to 172,767.32, 259,058.64 and 54,406.88

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Solution

The fourth proportional to 172,767.32, 259,058.64 and 54,406.88 is: 81,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,767.32 : 259,058.64 = 54,406.88 : x
  2. Step 2: Convert to fraction form
    172,767.32/259,058.64 = 54,406.88/x
  3. Step 3: Cross multiply
    172,767.32x = 259,058.64 × 54,406.88
  4. Step 4: Simplify right side
    172,767.32x = 14,094,572,339.44
  5. Step 5: Solve for x
    x = 14,094,572,339.44/172,767.32
  6. Step 6: Final answer
    x = 81,581.24

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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.