Home / 55,319.31-76,338.36-30,168.81

Finding the Fourth Proportional to 55,319.31, 76,338.36 and 30,168.81

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Solution

The fourth proportional to 55,319.31, 76,338.36 and 30,168.81 is: 41,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319.31 : 76,338.36 = 30,168.81 : x
  2. Step 2: Convert to fraction form
    55,319.31/76,338.36 = 30,168.81/x
  3. Step 3: Cross multiply
    55,319.31x = 76,338.36 × 30,168.81
  4. Step 4: Simplify right side
    55,319.31x = 2,303,037,478.55
  5. Step 5: Solve for x
    x = 2,303,037,478.55/55,319.31
  6. Step 6: Final answer
    x = 41,631.71

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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.