Home / 47,989.25-66,211.87-30,994.21

Finding the Fourth Proportional to 47,989.25, 66,211.87 and 30,994.21

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Solution

The fourth proportional to 47,989.25, 66,211.87 and 30,994.21 is: 42,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,989.25 : 66,211.87 = 30,994.21 : x
  2. Step 2: Convert to fraction form
    47,989.25/66,211.87 = 30,994.21/x
  3. Step 3: Cross multiply
    47,989.25x = 66,211.87 × 30,994.21
  4. Step 4: Simplify right side
    47,989.25x = 2,052,184,603.27
  5. Step 5: Solve for x
    x = 2,052,184,603.27/47,989.25
  6. Step 6: Final answer
    x = 42,763.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.