Home / 98,283.78-135,622.23-57,457.49

Finding the Fourth Proportional to 98,283.78, 135,622.23 and 57,457.49

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Solution

The fourth proportional to 98,283.78, 135,622.23 and 57,457.49 is: 79,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,283.78 : 135,622.23 = 57,457.49 : x
  2. Step 2: Convert to fraction form
    98,283.78/135,622.23 = 57,457.49/x
  3. Step 3: Cross multiply
    98,283.78x = 135,622.23 × 57,457.49
  4. Step 4: Simplify right side
    98,283.78x = 7,792,512,245.89
  5. Step 5: Solve for x
    x = 7,792,512,245.89/98,283.78
  6. Step 6: Final answer
    x = 79,285.84

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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.