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Finding the Fourth Proportional to 92,289.60, 138,434.40 and 45,633.60

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Solution

The fourth proportional to 92,289.60, 138,434.40 and 45,633.60 is: 68,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,289.60 : 138,434.40 = 45,633.60 : x
  2. Step 2: Convert to fraction form
    92,289.60/138,434.40 = 45,633.60/x
  3. Step 3: Cross multiply
    92,289.60x = 138,434.40 × 45,633.60
  4. Step 4: Simplify right side
    92,289.60x = 6,317,260,035.84
  5. Step 5: Solve for x
    x = 6,317,260,035.84/92,289.60
  6. Step 6: Final answer
    x = 68,450.40

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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.