Home / 57,234.78-78,988.66-31,749.14

Finding the Fourth Proportional to 57,234.78, 78,988.66 and 31,749.14

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Solution

The fourth proportional to 57,234.78, 78,988.66 and 31,749.14 is: 43,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.78 : 78,988.66 = 31,749.14 : x
  2. Step 2: Convert to fraction form
    57,234.78/78,988.66 = 31,749.14/x
  3. Step 3: Cross multiply
    57,234.78x = 78,988.66 × 31,749.14
  4. Step 4: Simplify right side
    57,234.78x = 2,507,822,024.75
  5. Step 5: Solve for x
    x = 2,507,822,024.75/57,234.78
  6. Step 6: Final answer
    x = 43,816.40

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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.