Home / 53,820.95-80,731.43-18,752.41

Finding the Fourth Proportional to 53,820.95, 80,731.43 and 18,752.41

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Solution

The fourth proportional to 53,820.95, 80,731.43 and 18,752.41 is: 28,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,820.95 : 80,731.43 = 18,752.41 : x
  2. Step 2: Convert to fraction form
    53,820.95/80,731.43 = 18,752.41/x
  3. Step 3: Cross multiply
    53,820.95x = 80,731.43 × 18,752.41
  4. Step 4: Simplify right side
    53,820.95x = 1,513,908,377.83
  5. Step 5: Solve for x
    x = 1,513,908,377.83/53,820.95
  6. Step 6: Final answer
    x = 28,128.61

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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.