Home / 53,108.70-73,287.90-30,431.99

Finding the Fourth Proportional to 53,108.70, 73,287.90 and 30,431.99

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Solution

The fourth proportional to 53,108.70, 73,287.90 and 30,431.99 is: 41,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,108.70 : 73,287.90 = 30,431.99 : x
  2. Step 2: Convert to fraction form
    53,108.70/73,287.90 = 30,431.99/x
  3. Step 3: Cross multiply
    53,108.70x = 73,287.90 × 30,431.99
  4. Step 4: Simplify right side
    53,108.70x = 2,230,296,639.92
  5. Step 5: Solve for x
    x = 2,230,296,639.92/53,108.70
  6. Step 6: Final answer
    x = 41,994.94

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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.