Home / 45,885.57-68,820.11-12,151.80

Finding the Fourth Proportional to 45,885.57, 68,820.11 and 12,151.80

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Solution

The fourth proportional to 45,885.57, 68,820.11 and 12,151.80 is: 18,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.57 : 68,820.11 = 12,151.80 : x
  2. Step 2: Convert to fraction form
    45,885.57/68,820.11 = 12,151.80/x
  3. Step 3: Cross multiply
    45,885.57x = 68,820.11 × 12,151.80
  4. Step 4: Simplify right side
    45,885.57x = 836,288,212.70
  5. Step 5: Solve for x
    x = 836,288,212.70/45,885.57
  6. Step 6: Final answer
    x = 18,225.52

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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.