Home / 76,540.90-105,628.98-46,331.68

Finding the Fourth Proportional to 76,540.90, 105,628.98 and 46,331.68

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Solution

The fourth proportional to 76,540.90, 105,628.98 and 46,331.68 is: 63,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,540.90 : 105,628.98 = 46,331.68 : x
  2. Step 2: Convert to fraction form
    76,540.90/105,628.98 = 46,331.68/x
  3. Step 3: Cross multiply
    76,540.90x = 105,628.98 × 46,331.68
  4. Step 4: Simplify right side
    76,540.90x = 4,893,968,100.09
  5. Step 5: Solve for x
    x = 4,893,968,100.09/76,540.90
  6. Step 6: Final answer
    x = 63,939.25

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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.