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Finding the Fourth Proportional to 98,449.97, 147,674.07 and 30,987.09

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Solution

The fourth proportional to 98,449.97, 147,674.07 and 30,987.09 is: 46,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,449.97 : 147,674.07 = 30,987.09 : x
  2. Step 2: Convert to fraction form
    98,449.97/147,674.07 = 30,987.09/x
  3. Step 3: Cross multiply
    98,449.97x = 147,674.07 × 30,987.09
  4. Step 4: Simplify right side
    98,449.97x = 4,575,989,697.76
  5. Step 5: Solve for x
    x = 4,575,989,697.76/98,449.97
  6. Step 6: Final answer
    x = 46,480.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.