Home / 66,861.12-100,290.92-16,260.45

Finding the Fourth Proportional to 66,861.12, 100,290.92 and 16,260.45

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Solution

The fourth proportional to 66,861.12, 100,290.92 and 16,260.45 is: 24,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,861.12 : 100,290.92 = 16,260.45 : x
  2. Step 2: Convert to fraction form
    66,861.12/100,290.92 = 16,260.45/x
  3. Step 3: Cross multiply
    66,861.12x = 100,290.92 × 16,260.45
  4. Step 4: Simplify right side
    66,861.12x = 1,630,775,408.81
  5. Step 5: Solve for x
    x = 1,630,775,408.81/66,861.12
  6. Step 6: Final answer
    x = 24,390.49

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1.5x scale

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.