Home / 53,917.83-74,403.30-31,255.11

Finding the Fourth Proportional to 53,917.83, 74,403.30 and 31,255.11

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Solution

The fourth proportional to 53,917.83, 74,403.30 and 31,255.11 is: 43,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.83 : 74,403.30 = 31,255.11 : x
  2. Step 2: Convert to fraction form
    53,917.83/74,403.30 = 31,255.11/x
  3. Step 3: Cross multiply
    53,917.83x = 74,403.30 × 31,255.11
  4. Step 4: Simplify right side
    53,917.83x = 2,325,483,325.86
  5. Step 5: Solve for x
    x = 2,325,483,325.86/53,917.83
  6. Step 6: Final answer
    x = 43,130.14

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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.