Home / 76,662.12-105,782.37-46,028.74

Finding the Fourth Proportional to 76,662.12, 105,782.37 and 46,028.74

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Solution

The fourth proportional to 76,662.12, 105,782.37 and 46,028.74 is: 63,512.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,662.12 : 105,782.37 = 46,028.74 : x
  2. Step 2: Convert to fraction form
    76,662.12/105,782.37 = 46,028.74/x
  3. Step 3: Cross multiply
    76,662.12x = 105,782.37 × 46,028.74
  4. Step 4: Simplify right side
    76,662.12x = 4,869,028,975.17
  5. Step 5: Solve for x
    x = 4,869,028,975.17/76,662.12
  6. Step 6: Final answer
    x = 63,512.84

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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.