Home / 76,936.18-106,189.63-45,115.33

Finding the Fourth Proportional to 76,936.18, 106,189.63 and 45,115.33

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Solution

The fourth proportional to 76,936.18, 106,189.63 and 45,115.33 is: 62,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,936.18 : 106,189.63 = 45,115.33 : x
  2. Step 2: Convert to fraction form
    76,936.18/106,189.63 = 45,115.33/x
  3. Step 3: Cross multiply
    76,936.18x = 106,189.63 × 45,115.33
  4. Step 4: Simplify right side
    76,936.18x = 4,790,779,669.08
  5. Step 5: Solve for x
    x = 4,790,779,669.08/76,936.18
  6. Step 6: Final answer
    x = 62,269.53

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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.