Home / 53,887.78-74,365.29-31,231.17

Finding the Fourth Proportional to 53,887.78, 74,365.29 and 31,231.17

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Solution

The fourth proportional to 53,887.78, 74,365.29 and 31,231.17 is: 43,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,887.78 : 74,365.29 = 31,231.17 : x
  2. Step 2: Convert to fraction form
    53,887.78/74,365.29 = 31,231.17/x
  3. Step 3: Cross multiply
    53,887.78x = 74,365.29 × 31,231.17
  4. Step 4: Simplify right side
    53,887.78x = 2,322,515,014.09
  5. Step 5: Solve for x
    x = 2,322,515,014.09/53,887.78
  6. Step 6: Final answer
    x = 43,099.10

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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.