Home / 40,111.84-60,148.26-20,112.74

Finding the Fourth Proportional to 40,111.84, 60,148.26 and 20,112.74

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Solution

The fourth proportional to 40,111.84, 60,148.26 and 20,112.74 is: 30,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.84 : 60,148.26 = 20,112.74 : x
  2. Step 2: Convert to fraction form
    40,111.84/60,148.26 = 20,112.74/x
  3. Step 3: Cross multiply
    40,111.84x = 60,148.26 × 20,112.74
  4. Step 4: Simplify right side
    40,111.84x = 1,209,746,014.09
  5. Step 5: Solve for x
    x = 1,209,746,014.09/40,111.84
  6. Step 6: Final answer
    x = 30,159.33

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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.