Home / 98,217.18-135,539.73-55,782.18

Finding the Fourth Proportional to 98,217.18, 135,539.73 and 55,782.18

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Solution

The fourth proportional to 98,217.18, 135,539.73 and 55,782.18 is: 76,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,217.18 : 135,539.73 = 55,782.18 : x
  2. Step 2: Convert to fraction form
    98,217.18/135,539.73 = 55,782.18/x
  3. Step 3: Cross multiply
    98,217.18x = 135,539.73 × 55,782.18
  4. Step 4: Simplify right side
    98,217.18x = 7,560,701,616.01
  5. Step 5: Solve for x
    x = 7,560,701,616.01/98,217.18
  6. Step 6: Final answer
    x = 76,979.42

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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.