Home / 81,988.36-122,982.54-46,903.41

Finding the Fourth Proportional to 81,988.36, 122,982.54 and 46,903.41

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Solution

The fourth proportional to 81,988.36, 122,982.54 and 46,903.41 is: 70,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,988.36 : 122,982.54 = 46,903.41 : x
  2. Step 2: Convert to fraction form
    81,988.36/122,982.54 = 46,903.41/x
  3. Step 3: Cross multiply
    81,988.36x = 122,982.54 × 46,903.41
  4. Step 4: Simplify right side
    81,988.36x = 5,768,300,320.57
  5. Step 5: Solve for x
    x = 5,768,300,320.57/81,988.36
  6. Step 6: Final answer
    x = 70,355.12

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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.