Home / 53,972.08-80,994.06-18,911.68

Finding the Fourth Proportional to 53,972.08, 80,994.06 and 18,911.68

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Solution

The fourth proportional to 53,972.08, 80,994.06 and 18,911.68 is: 28,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,972.08 : 80,994.06 = 18,911.68 : x
  2. Step 2: Convert to fraction form
    53,972.08/80,994.06 = 18,911.68/x
  3. Step 3: Cross multiply
    53,972.08x = 80,994.06 × 18,911.68
  4. Step 4: Simplify right side
    53,972.08x = 1,531,733,744.62
  5. Step 5: Solve for x
    x = 1,531,733,744.62/53,972.08
  6. Step 6: Final answer
    x = 28,380.11

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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.