Home / 91,142.01-125,755.80-52,879.38

Finding the Fourth Proportional to 91,142.01, 125,755.80 and 52,879.38

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Solution

The fourth proportional to 91,142.01, 125,755.80 and 52,879.38 is: 72,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,142.01 : 125,755.80 = 52,879.38 : x
  2. Step 2: Convert to fraction form
    91,142.01/125,755.80 = 52,879.38/x
  3. Step 3: Cross multiply
    91,142.01x = 125,755.80 × 52,879.38
  4. Step 4: Simplify right side
    91,142.01x = 6,649,888,735.40
  5. Step 5: Solve for x
    x = 6,649,888,735.40/91,142.01
  6. Step 6: Final answer
    x = 72,961.84

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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.