Home / 98,021.34-135,211.86-61,664.94

Finding the Fourth Proportional to 98,021.34, 135,211.86 and 61,664.94

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Solution

The fourth proportional to 98,021.34, 135,211.86 and 61,664.94 is: 85,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,021.34 : 135,211.86 = 61,664.94 : x
  2. Step 2: Convert to fraction form
    98,021.34/135,211.86 = 61,664.94/x
  3. Step 3: Cross multiply
    98,021.34x = 135,211.86 × 61,664.94
  4. Step 4: Simplify right side
    98,021.34x = 8,337,831,234.19
  5. Step 5: Solve for x
    x = 8,337,831,234.19/98,021.34
  6. Step 6: Final answer
    x = 85,061.39

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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.