Home / 98,363.12-135,740.76-55,921.64

Finding the Fourth Proportional to 98,363.12, 135,740.76 and 55,921.64

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Solution

The fourth proportional to 98,363.12, 135,740.76 and 55,921.64 is: 77,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,363.12 : 135,740.76 = 55,921.64 : x
  2. Step 2: Convert to fraction form
    98,363.12/135,740.76 = 55,921.64/x
  3. Step 3: Cross multiply
    98,363.12x = 135,740.76 × 55,921.64
  4. Step 4: Simplify right side
    98,363.12x = 7,590,845,914.05
  5. Step 5: Solve for x
    x = 7,590,845,914.05/98,363.12
  6. Step 6: Final answer
    x = 77,171.67

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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.