Home / 55,301.76-76,316.31-30,151.26

Finding the Fourth Proportional to 55,301.76, 76,316.31 and 30,151.26

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Solution

The fourth proportional to 55,301.76, 76,316.31 and 30,151.26 is: 41,608.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,301.76 : 76,316.31 = 30,151.26 : x
  2. Step 2: Convert to fraction form
    55,301.76/76,316.31 = 30,151.26/x
  3. Step 3: Cross multiply
    55,301.76x = 76,316.31 × 30,151.26
  4. Step 4: Simplify right side
    55,301.76x = 2,301,032,905.05
  5. Step 5: Solve for x
    x = 2,301,032,905.05/55,301.76
  6. Step 6: Final answer
    x = 41,608.67

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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.