Home / 91,115.42-125,739.64-50,832.25

Finding the Fourth Proportional to 91,115.42, 125,739.64 and 50,832.25

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Solution

The fourth proportional to 91,115.42, 125,739.64 and 50,832.25 is: 70,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,115.42 : 125,739.64 = 50,832.25 : x
  2. Step 2: Convert to fraction form
    91,115.42/125,739.64 = 50,832.25/x
  3. Step 3: Cross multiply
    91,115.42x = 125,739.64 × 50,832.25
  4. Step 4: Simplify right side
    91,115.42x = 6,391,628,373.96
  5. Step 5: Solve for x
    x = 6,391,628,373.96/91,115.42
  6. Step 6: Final answer
    x = 70,148.70

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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.