Home / 55,431.77-76,473.19-40,930.70

Finding the Fourth Proportional to 55,431.77, 76,473.19 and 40,930.70

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Solution

The fourth proportional to 55,431.77, 76,473.19 and 40,930.70 is: 56,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,431.77 : 76,473.19 = 40,930.70 : x
  2. Step 2: Convert to fraction form
    55,431.77/76,473.19 = 40,930.70/x
  3. Step 3: Cross multiply
    55,431.77x = 76,473.19 × 40,930.70
  4. Step 4: Simplify right side
    55,431.77x = 3,130,101,517.02
  5. Step 5: Solve for x
    x = 3,130,101,517.02/55,431.77
  6. Step 6: Final answer
    x = 56,467.64

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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.