Home / 53,833.40-80,721.30-18,774.20

Finding the Fourth Proportional to 53,833.40, 80,721.30 and 18,774.20

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Solution

The fourth proportional to 53,833.40, 80,721.30 and 18,774.20 is: 28,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,833.40 : 80,721.30 = 18,774.20 : x
  2. Step 2: Convert to fraction form
    53,833.40/80,721.30 = 18,774.20/x
  3. Step 3: Cross multiply
    53,833.40x = 80,721.30 × 18,774.20
  4. Step 4: Simplify right side
    53,833.40x = 1,515,477,830.46
  5. Step 5: Solve for x
    x = 1,515,477,830.46/53,833.40
  6. Step 6: Final answer
    x = 28,151.26

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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.