Home / 76,135.08-105,054.18-42,594.60

Finding the Fourth Proportional to 76,135.08, 105,054.18 and 42,594.60

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Solution

The fourth proportional to 76,135.08, 105,054.18 and 42,594.60 is: 58,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,135.08 : 105,054.18 = 42,594.60 : x
  2. Step 2: Convert to fraction form
    76,135.08/105,054.18 = 42,594.60/x
  3. Step 3: Cross multiply
    76,135.08x = 105,054.18 × 42,594.60
  4. Step 4: Simplify right side
    76,135.08x = 4,474,740,775.43
  5. Step 5: Solve for x
    x = 4,474,740,775.43/76,135.08
  6. Step 6: Final answer
    x = 58,773.71

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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.