Home / 84,129.84-116,105.40-48,321.36

Finding the Fourth Proportional to 84,129.84, 116,105.40 and 48,321.36

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Solution

The fourth proportional to 84,129.84, 116,105.40 and 48,321.36 is: 66,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,129.84 : 116,105.40 = 48,321.36 : x
  2. Step 2: Convert to fraction form
    84,129.84/116,105.40 = 48,321.36/x
  3. Step 3: Cross multiply
    84,129.84x = 116,105.40 × 48,321.36
  4. Step 4: Simplify right side
    84,129.84x = 5,610,370,831.34
  5. Step 5: Solve for x
    x = 5,610,370,831.34/84,129.84
  6. Step 6: Final answer
    x = 66,687.05

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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.