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Finding the Fourth Proportional to 92,288.40, 138,432.60 and 29,958.90

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Solution

The fourth proportional to 92,288.40, 138,432.60 and 29,958.90 is: 44,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,288.40 : 138,432.60 = 29,958.90 : x
  2. Step 2: Convert to fraction form
    92,288.40/138,432.60 = 29,958.90/x
  3. Step 3: Cross multiply
    92,288.40x = 138,432.60 × 29,958.90
  4. Step 4: Simplify right side
    92,288.40x = 4,147,288,420.14
  5. Step 5: Solve for x
    x = 4,147,288,420.14/92,288.40
  6. Step 6: Final answer
    x = 44,938.35

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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.