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Finding the Fourth Proportional to 92,330.21, 138,492.87 and 29,147.78

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Solution

The fourth proportional to 92,330.21, 138,492.87 and 29,147.78 is: 43,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,330.21 : 138,492.87 = 29,147.78 : x
  2. Step 2: Convert to fraction form
    92,330.21/138,492.87 = 29,147.78/x
  3. Step 3: Cross multiply
    92,330.21x = 138,492.87 × 29,147.78
  4. Step 4: Simplify right side
    92,330.21x = 4,036,759,013.86
  5. Step 5: Solve for x
    x = 4,036,759,013.86/92,330.21
  6. Step 6: Final answer
    x = 43,720.89

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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.