Home / 51,597.09-71,218.76-30,388.68

Finding the Fourth Proportional to 51,597.09, 71,218.76 and 30,388.68

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Solution

The fourth proportional to 51,597.09, 71,218.76 and 30,388.68 is: 41,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,597.09 : 71,218.76 = 30,388.68 : x
  2. Step 2: Convert to fraction form
    51,597.09/71,218.76 = 30,388.68/x
  3. Step 3: Cross multiply
    51,597.09x = 71,218.76 × 30,388.68
  4. Step 4: Simplify right side
    51,597.09x = 2,164,243,955.69
  5. Step 5: Solve for x
    x = 2,164,243,955.69/51,597.09
  6. Step 6: Final answer
    x = 41,945.08

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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.