Home / 53,820.42-80,730.93-18,759.90

Finding the Fourth Proportional to 53,820.42, 80,730.93 and 18,759.90

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Solution

The fourth proportional to 53,820.42, 80,730.93 and 18,759.90 is: 28,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,820.42 : 80,730.93 = 18,759.90 : x
  2. Step 2: Convert to fraction form
    53,820.42/80,730.93 = 18,759.90/x
  3. Step 3: Cross multiply
    53,820.42x = 80,730.93 × 18,759.90
  4. Step 4: Simplify right side
    53,820.42x = 1,514,504,173.71
  5. Step 5: Solve for x
    x = 1,514,504,173.71/53,820.42
  6. Step 6: Final answer
    x = 28,139.95

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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.