Home / 76,899.94-106,109.19-51,365.35

Finding the Fourth Proportional to 76,899.94, 106,109.19 and 51,365.35

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Solution

The fourth proportional to 76,899.94, 106,109.19 and 51,365.35 is: 70,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,899.94 : 106,109.19 = 51,365.35 : x
  2. Step 2: Convert to fraction form
    76,899.94/106,109.19 = 51,365.35/x
  3. Step 3: Cross multiply
    76,899.94x = 106,109.19 × 51,365.35
  4. Step 4: Simplify right side
    76,899.94x = 5,450,335,682.57
  5. Step 5: Solve for x
    x = 5,450,335,682.57/76,899.94
  6. Step 6: Final answer
    x = 70,875.68

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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.