Home / 55,511.34-76,605.78-31,639.02

Finding the Fourth Proportional to 55,511.34, 76,605.78 and 31,639.02

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Solution

The fourth proportional to 55,511.34, 76,605.78 and 31,639.02 is: 43,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.34 : 76,605.78 = 31,639.02 : x
  2. Step 2: Convert to fraction form
    55,511.34/76,605.78 = 31,639.02/x
  3. Step 3: Cross multiply
    55,511.34x = 76,605.78 × 31,639.02
  4. Step 4: Simplify right side
    55,511.34x = 2,423,731,805.54
  5. Step 5: Solve for x
    x = 2,423,731,805.54/55,511.34
  6. Step 6: Final answer
    x = 43,661.92

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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.