Home / 76,421.37-114,654.84-36,470.35

Finding the Fourth Proportional to 76,421.37, 114,654.84 and 36,470.35

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Solution

The fourth proportional to 76,421.37, 114,654.84 and 36,470.35 is: 54,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421.37 : 114,654.84 = 36,470.35 : x
  2. Step 2: Convert to fraction form
    76,421.37/114,654.84 = 36,470.35/x
  3. Step 3: Cross multiply
    76,421.37x = 114,654.84 × 36,470.35
  4. Step 4: Simplify right side
    76,421.37x = 4,181,502,143.99
  5. Step 5: Solve for x
    x = 4,181,502,143.99/76,421.37
  6. Step 6: Final answer
    x = 54,716.40

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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.