Home / 65,511.36-90,408.88-36,840.05

Finding the Fourth Proportional to 65,511.36, 90,408.88 and 36,840.05

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Solution

The fourth proportional to 65,511.36, 90,408.88 and 36,840.05 is: 50,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511.36 : 90,408.88 = 36,840.05 : x
  2. Step 2: Convert to fraction form
    65,511.36/90,408.88 = 36,840.05/x
  3. Step 3: Cross multiply
    65,511.36x = 90,408.88 × 36,840.05
  4. Step 4: Simplify right side
    65,511.36x = 3,330,667,207.60
  5. Step 5: Solve for x
    x = 3,330,667,207.60/65,511.36
  6. Step 6: Final answer
    x = 50,841.06

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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.