Home / 97,921.50-135,137.14-55,493.70

Finding the Fourth Proportional to 97,921.50, 135,137.14 and 55,493.70

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Solution

The fourth proportional to 97,921.50, 135,137.14 and 55,493.70 is: 76,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,921.50 : 135,137.14 = 55,493.70 : x
  2. Step 2: Convert to fraction form
    97,921.50/135,137.14 = 55,493.70/x
  3. Step 3: Cross multiply
    97,921.50x = 135,137.14 × 55,493.70
  4. Step 4: Simplify right side
    97,921.50x = 7,499,259,767.28
  5. Step 5: Solve for x
    x = 7,499,259,767.28/97,921.50
  6. Step 6: Final answer
    x = 76,584.40

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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.