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Finding the Fourth Proportional to 172,416.48, 258,624.72 and 54,097.28

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Solution

The fourth proportional to 172,416.48, 258,624.72 and 54,097.28 is: 81,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,416.48 : 258,624.72 = 54,097.28 : x
  2. Step 2: Convert to fraction form
    172,416.48/258,624.72 = 54,097.28/x
  3. Step 3: Cross multiply
    172,416.48x = 258,624.72 × 54,097.28
  4. Step 4: Simplify right side
    172,416.48x = 13,990,893,892.76
  5. Step 5: Solve for x
    x = 13,990,893,892.76/172,416.48
  6. Step 6: Final answer
    x = 81,145.92

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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.