Home / 98,216.90-135,540.27-55,775.74

Finding the Fourth Proportional to 98,216.90, 135,540.27 and 55,775.74

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Solution

The fourth proportional to 98,216.90, 135,540.27 and 55,775.74 is: 76,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,216.90 : 135,540.27 = 55,775.74 : x
  2. Step 2: Convert to fraction form
    98,216.90/135,540.27 = 55,775.74/x
  3. Step 3: Cross multiply
    98,216.90x = 135,540.27 × 55,775.74
  4. Step 4: Simplify right side
    98,216.90x = 7,559,857,902.47
  5. Step 5: Solve for x
    x = 7,559,857,902.47/98,216.90
  6. Step 6: Final answer
    x = 76,971.05

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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.