Home / 98,498.23-135,922.96-55,478.12

Finding the Fourth Proportional to 98,498.23, 135,922.96 and 55,478.12

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Solution

The fourth proportional to 98,498.23, 135,922.96 and 55,478.12 is: 76,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,498.23 : 135,922.96 = 55,478.12 : x
  2. Step 2: Convert to fraction form
    98,498.23/135,922.96 = 55,478.12/x
  3. Step 3: Cross multiply
    98,498.23x = 135,922.96 × 55,478.12
  4. Step 4: Simplify right side
    98,498.23x = 7,540,749,675.37
  5. Step 5: Solve for x
    x = 7,540,749,675.37/98,498.23
  6. Step 6: Final answer
    x = 76,557.21

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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.