Home / 80,971.64-111,741.06-45,163.98

Finding the Fourth Proportional to 80,971.64, 111,741.06 and 45,163.98

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Solution

The fourth proportional to 80,971.64, 111,741.06 and 45,163.98 is: 62,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,971.64 : 111,741.06 = 45,163.98 : x
  2. Step 2: Convert to fraction form
    80,971.64/111,741.06 = 45,163.98/x
  3. Step 3: Cross multiply
    80,971.64x = 111,741.06 × 45,163.98
  4. Step 4: Simplify right side
    80,971.64x = 5,046,670,999.02
  5. Step 5: Solve for x
    x = 5,046,670,999.02/80,971.64
  6. Step 6: Final answer
    x = 62,326.40

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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.