Home / 92,768.42-139,172.79-30,436.58

Finding the Fourth Proportional to 92,768.42, 139,172.79 and 30,436.58

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Solution

The fourth proportional to 92,768.42, 139,172.79 and 30,436.58 is: 45,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,768.42 : 139,172.79 = 30,436.58 : x
  2. Step 2: Convert to fraction form
    92,768.42/139,172.79 = 30,436.58/x
  3. Step 3: Cross multiply
    92,768.42x = 139,172.79 × 30,436.58
  4. Step 4: Simplify right side
    92,768.42x = 4,235,943,756.66
  5. Step 5: Solve for x
    x = 4,235,943,756.66/92,768.42
  6. Step 6: Final answer
    x = 45,661.48

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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.