Home / 98,520.36-135,958.24-56,078.88

Finding the Fourth Proportional to 98,520.36, 135,958.24 and 56,078.88

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Solution

The fourth proportional to 98,520.36, 135,958.24 and 56,078.88 is: 77,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,520.36 : 135,958.24 = 56,078.88 : x
  2. Step 2: Convert to fraction form
    98,520.36/135,958.24 = 56,078.88/x
  3. Step 3: Cross multiply
    98,520.36x = 135,958.24 × 56,078.88
  4. Step 4: Simplify right side
    98,520.36x = 7,624,385,825.97
  5. Step 5: Solve for x
    x = 7,624,385,825.97/98,520.36
  6. Step 6: Final answer
    x = 77,388.94

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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.