Home / 91,485.86-126,249.32-51,199.95

Finding the Fourth Proportional to 91,485.86, 126,249.32 and 51,199.95

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Solution

The fourth proportional to 91,485.86, 126,249.32 and 51,199.95 is: 70,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,485.86 : 126,249.32 = 51,199.95 : x
  2. Step 2: Convert to fraction form
    91,485.86/126,249.32 = 51,199.95/x
  3. Step 3: Cross multiply
    91,485.86x = 126,249.32 × 51,199.95
  4. Step 4: Simplify right side
    91,485.86x = 6,463,958,690.82
  5. Step 5: Solve for x
    x = 6,463,958,690.82/91,485.86
  6. Step 6: Final answer
    x = 70,655.28

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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.