Home / 53,901.05-80,857.04-20,648.93

Finding the Fourth Proportional to 53,901.05, 80,857.04 and 20,648.93

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Solution

The fourth proportional to 53,901.05, 80,857.04 and 20,648.93 is: 30,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,901.05 : 80,857.04 = 20,648.93 : x
  2. Step 2: Convert to fraction form
    53,901.05/80,857.04 = 20,648.93/x
  3. Step 3: Cross multiply
    53,901.05x = 80,857.04 × 20,648.93
  4. Step 4: Simplify right side
    53,901.05x = 1,669,610,851.44
  5. Step 5: Solve for x
    x = 1,669,610,851.44/53,901.05
  6. Step 6: Final answer
    x = 30,975.48

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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.