Home / 81,731.36-122,509.84-46,595.36

Finding the Fourth Proportional to 81,731.36, 122,509.84 and 46,595.36

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Solution

The fourth proportional to 81,731.36, 122,509.84 and 46,595.36 is: 69,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,731.36 : 122,509.84 = 46,595.36 : x
  2. Step 2: Convert to fraction form
    81,731.36/122,509.84 = 46,595.36/x
  3. Step 3: Cross multiply
    81,731.36x = 122,509.84 × 46,595.36
  4. Step 4: Simplify right side
    81,731.36x = 5,708,390,098.34
  5. Step 5: Solve for x
    x = 5,708,390,098.34/81,731.36
  6. Step 6: Final answer
    x = 69,843.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.