Home / 55,511.39-76,601.09-31,311.02

Finding the Fourth Proportional to 55,511.39, 76,601.09 and 31,311.02

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Solution

The fourth proportional to 55,511.39, 76,601.09 and 31,311.02 is: 43,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.39 : 76,601.09 = 31,311.02 : x
  2. Step 2: Convert to fraction form
    55,511.39/76,601.09 = 31,311.02/x
  3. Step 3: Cross multiply
    55,511.39x = 76,601.09 × 31,311.02
  4. Step 4: Simplify right side
    55,511.39x = 2,398,458,261.01
  5. Step 5: Solve for x
    x = 2,398,458,261.01/55,511.39
  6. Step 6: Final answer
    x = 43,206.60

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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.