Home / 53,661.63-80,492.45-20,381.61

Finding the Fourth Proportional to 53,661.63, 80,492.45 and 20,381.61

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Solution

The fourth proportional to 53,661.63, 80,492.45 and 20,381.61 is: 30,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.63 : 80,492.45 = 20,381.61 : x
  2. Step 2: Convert to fraction form
    53,661.63/80,492.45 = 20,381.61/x
  3. Step 3: Cross multiply
    53,661.63x = 80,492.45 × 20,381.61
  4. Step 4: Simplify right side
    53,661.63x = 1,640,566,041.29
  5. Step 5: Solve for x
    x = 1,640,566,041.29/53,661.63
  6. Step 6: Final answer
    x = 30,572.42

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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.