Home / 81,999.46-113,146.76-46,187.20

Finding the Fourth Proportional to 81,999.46, 113,146.76 and 46,187.20

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Solution

The fourth proportional to 81,999.46, 113,146.76 and 46,187.20 is: 63,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999.46 : 113,146.76 = 46,187.20 : x
  2. Step 2: Convert to fraction form
    81,999.46/113,146.76 = 46,187.20/x
  3. Step 3: Cross multiply
    81,999.46x = 113,146.76 × 46,187.20
  4. Step 4: Simplify right side
    81,999.46x = 5,225,932,033.47
  5. Step 5: Solve for x
    x = 5,225,932,033.47/81,999.46
  6. Step 6: Final answer
    x = 63,731.30

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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.