Home / 57,234.36-78,981.21-31,741.77

Finding the Fourth Proportional to 57,234.36, 78,981.21 and 31,741.77

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Solution

The fourth proportional to 57,234.36, 78,981.21 and 31,741.77 is: 43,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.36 : 78,981.21 = 31,741.77 : x
  2. Step 2: Convert to fraction form
    57,234.36/78,981.21 = 31,741.77/x
  3. Step 3: Cross multiply
    57,234.36x = 78,981.21 × 31,741.77
  4. Step 4: Simplify right side
    57,234.36x = 2,507,003,402.14
  5. Step 5: Solve for x
    x = 2,507,003,402.14/57,234.36
  6. Step 6: Final answer
    x = 43,802.42

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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.