Home / 53,954.64-80,968.32-18,894.60

Finding the Fourth Proportional to 53,954.64, 80,968.32 and 18,894.60

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Solution

The fourth proportional to 53,954.64, 80,968.32 and 18,894.60 is: 28,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,954.64 : 80,968.32 = 18,894.60 : x
  2. Step 2: Convert to fraction form
    53,954.64/80,968.32 = 18,894.60/x
  3. Step 3: Cross multiply
    53,954.64x = 80,968.32 × 18,894.60
  4. Step 4: Simplify right side
    53,954.64x = 1,529,864,019.07
  5. Step 5: Solve for x
    x = 1,529,864,019.07/53,954.64
  6. Step 6: Final answer
    x = 28,354.63

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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.