Home / 98,359.12-135,735.24-55,917.64

Finding the Fourth Proportional to 98,359.12, 135,735.24 and 55,917.64

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Solution

The fourth proportional to 98,359.12, 135,735.24 and 55,917.64 is: 77,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,359.12 : 135,735.24 = 55,917.64 : x
  2. Step 2: Convert to fraction form
    98,359.12/135,735.24 = 55,917.64/x
  3. Step 3: Cross multiply
    98,359.12x = 135,735.24 × 55,917.64
  4. Step 4: Simplify right side
    98,359.12x = 7,589,994,285.63
  5. Step 5: Solve for x
    x = 7,589,994,285.63/98,359.12
  6. Step 6: Final answer
    x = 77,166.15

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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.