Home / 55,322.21-76,331.53-31,447.01

Finding the Fourth Proportional to 55,322.21, 76,331.53 and 31,447.01

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Solution

The fourth proportional to 55,322.21, 76,331.53 and 31,447.01 is: 43,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.21 : 76,331.53 = 31,447.01 : x
  2. Step 2: Convert to fraction form
    55,322.21/76,331.53 = 31,447.01/x
  3. Step 3: Cross multiply
    55,322.21x = 76,331.53 × 31,447.01
  4. Step 4: Simplify right side
    55,322.21x = 2,400,397,926.95
  5. Step 5: Solve for x
    x = 2,400,397,926.95/55,322.21
  6. Step 6: Final answer
    x = 43,389.41

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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.