Home / 98,529.18-135,921.56-58,223.45

Finding the Fourth Proportional to 98,529.18, 135,921.56 and 58,223.45

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Solution

The fourth proportional to 98,529.18, 135,921.56 and 58,223.45 is: 80,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,529.18 : 135,921.56 = 58,223.45 : x
  2. Step 2: Convert to fraction form
    98,529.18/135,921.56 = 58,223.45/x
  3. Step 3: Cross multiply
    98,529.18x = 135,921.56 × 58,223.45
  4. Step 4: Simplify right side
    98,529.18x = 7,913,821,181.86
  5. Step 5: Solve for x
    x = 7,913,821,181.86/98,529.18
  6. Step 6: Final answer
    x = 80,319.57

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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.