Home / 53,927.90-80,902.78-20,649.04

Finding the Fourth Proportional to 53,927.90, 80,902.78 and 20,649.04

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Solution

The fourth proportional to 53,927.90, 80,902.78 and 20,649.04 is: 30,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,927.90 : 80,902.78 = 20,649.04 : x
  2. Step 2: Convert to fraction form
    53,927.90/80,902.78 = 20,649.04/x
  3. Step 3: Cross multiply
    53,927.90x = 80,902.78 × 20,649.04
  4. Step 4: Simplify right side
    53,927.90x = 1,670,564,740.33
  5. Step 5: Solve for x
    x = 1,670,564,740.33/53,927.90
  6. Step 6: Final answer
    x = 30,977.75

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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.