Home / 80,017.95-120,102.23-40,603.35

Finding the Fourth Proportional to 80,017.95, 120,102.23 and 40,603.35

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Solution

The fourth proportional to 80,017.95, 120,102.23 and 40,603.35 is: 60,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,017.95 : 120,102.23 = 40,603.35 : x
  2. Step 2: Convert to fraction form
    80,017.95/120,102.23 = 40,603.35/x
  3. Step 3: Cross multiply
    80,017.95x = 120,102.23 × 40,603.35
  4. Step 4: Simplify right side
    80,017.95x = 4,876,552,880.47
  5. Step 5: Solve for x
    x = 4,876,552,880.47/80,017.95
  6. Step 6: Final answer
    x = 60,943.24

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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.