Home / 76,902.27-106,114.32-42,906.75

Finding the Fourth Proportional to 76,902.27, 106,114.32 and 42,906.75

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Solution

The fourth proportional to 76,902.27, 106,114.32 and 42,906.75 is: 59,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,902.27 : 106,114.32 = 42,906.75 : x
  2. Step 2: Convert to fraction form
    76,902.27/106,114.32 = 42,906.75/x
  3. Step 3: Cross multiply
    76,902.27x = 106,114.32 × 42,906.75
  4. Step 4: Simplify right side
    76,902.27x = 4,553,020,599.66
  5. Step 5: Solve for x
    x = 4,553,020,599.66/76,902.27
  6. Step 6: Final answer
    x = 59,205.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.