Home / 55,511.08-76,605.36-30,360.64

Finding the Fourth Proportional to 55,511.08, 76,605.36 and 30,360.64

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Solution

The fourth proportional to 55,511.08, 76,605.36 and 30,360.64 is: 41,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.08 : 76,605.36 = 30,360.64 : x
  2. Step 2: Convert to fraction form
    55,511.08/76,605.36 = 30,360.64/x
  3. Step 3: Cross multiply
    55,511.08x = 76,605.36 × 30,360.64
  4. Step 4: Simplify right side
    55,511.08x = 2,325,787,757.03
  5. Step 5: Solve for x
    x = 2,325,787,757.03/55,511.08
  6. Step 6: Final answer
    x = 41,897.72

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1.5x scale

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.