Home / 53,976.17-80,964.24-18,915.83

Finding the Fourth Proportional to 53,976.17, 80,964.24 and 18,915.83

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Solution

The fourth proportional to 53,976.17, 80,964.24 and 18,915.83 is: 28,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,976.17 : 80,964.24 = 18,915.83 : x
  2. Step 2: Convert to fraction form
    53,976.17/80,964.24 = 18,915.83/x
  3. Step 3: Cross multiply
    53,976.17x = 80,964.24 × 18,915.83
  4. Step 4: Simplify right side
    53,976.17x = 1,531,505,734.18
  5. Step 5: Solve for x
    x = 1,531,505,734.18/53,976.17
  6. Step 6: Final answer
    x = 28,373.74

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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.