Home / 53,815.69-80,723.57-18,730.75

Finding the Fourth Proportional to 53,815.69, 80,723.57 and 18,730.75

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Solution

The fourth proportional to 53,815.69, 80,723.57 and 18,730.75 is: 28,096.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815.69 : 80,723.57 = 18,730.75 : x
  2. Step 2: Convert to fraction form
    53,815.69/80,723.57 = 18,730.75/x
  3. Step 3: Cross multiply
    53,815.69x = 80,723.57 × 18,730.75
  4. Step 4: Simplify right side
    53,815.69x = 1,512,013,008.78
  5. Step 5: Solve for x
    x = 1,512,013,008.78/53,815.69
  6. Step 6: Final answer
    x = 28,096.14

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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.