Home / 98,321.28-135,684.30-55,880.10

Finding the Fourth Proportional to 98,321.28, 135,684.30 and 55,880.10

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Solution

The fourth proportional to 98,321.28, 135,684.30 and 55,880.10 is: 77,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,321.28 : 135,684.30 = 55,880.10 : x
  2. Step 2: Convert to fraction form
    98,321.28/135,684.30 = 55,880.10/x
  3. Step 3: Cross multiply
    98,321.28x = 135,684.30 × 55,880.10
  4. Step 4: Simplify right side
    98,321.28x = 7,582,052,252.43
  5. Step 5: Solve for x
    x = 7,582,052,252.43/98,321.28
  6. Step 6: Final answer
    x = 77,115.07

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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.