Home / 53,823.90-80,735.28-18,763.50

Finding the Fourth Proportional to 53,823.90, 80,735.28 and 18,763.50

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Solution

The fourth proportional to 53,823.90, 80,735.28 and 18,763.50 is: 28,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,823.90 : 80,735.28 = 18,763.50 : x
  2. Step 2: Convert to fraction form
    53,823.90/80,735.28 = 18,763.50/x
  3. Step 3: Cross multiply
    53,823.90x = 80,735.28 × 18,763.50
  4. Step 4: Simplify right side
    53,823.90x = 1,514,876,426.28
  5. Step 5: Solve for x
    x = 1,514,876,426.28/53,823.90
  6. Step 6: Final answer
    x = 28,145.05

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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.