Home / 98,276.32-135,604.30-57,987.04

Finding the Fourth Proportional to 98,276.32, 135,604.30 and 57,987.04

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Solution

The fourth proportional to 98,276.32, 135,604.30 and 57,987.04 is: 80,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,276.32 : 135,604.30 = 57,987.04 : x
  2. Step 2: Convert to fraction form
    98,276.32/135,604.30 = 57,987.04/x
  3. Step 3: Cross multiply
    98,276.32x = 135,604.30 × 57,987.04
  4. Step 4: Simplify right side
    98,276.32x = 7,863,291,968.27
  5. Step 5: Solve for x
    x = 7,863,291,968.27/98,276.32
  6. Step 6: Final answer
    x = 80,012.07

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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.