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Finding the Fourth Proportional to 55,793.60, 83,690.40 and 30,910.40

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Solution

The fourth proportional to 55,793.60, 83,690.40 and 30,910.40 is: 46,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,793.60 : 83,690.40 = 30,910.40 : x
  2. Step 2: Convert to fraction form
    55,793.60/83,690.40 = 30,910.40/x
  3. Step 3: Cross multiply
    55,793.60x = 83,690.40 × 30,910.40
  4. Step 4: Simplify right side
    55,793.60x = 2,586,903,740.16
  5. Step 5: Solve for x
    x = 2,586,903,740.16/55,793.60
  6. Step 6: Final answer
    x = 46,365.60

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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.