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Finding the Fourth Proportional to 36,455.78, 54,683.66 and 8,753.78

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Solution

The fourth proportional to 36,455.78, 54,683.66 and 8,753.78 is: 13,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,455.78 : 54,683.66 = 8,753.78 : x
  2. Step 2: Convert to fraction form
    36,455.78/54,683.66 = 8,753.78/x
  3. Step 3: Cross multiply
    36,455.78x = 54,683.66 × 8,753.78
  4. Step 4: Simplify right side
    36,455.78x = 478,688,729.23
  5. Step 5: Solve for x
    x = 478,688,729.23/36,455.78
  6. Step 6: Final answer
    x = 13,130.67

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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.