Home / 98,829.78-136,385.19-53,507.81

Finding the Fourth Proportional to 98,829.78, 136,385.19 and 53,507.81

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Solution

The fourth proportional to 98,829.78, 136,385.19 and 53,507.81 is: 73,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,829.78 : 136,385.19 = 53,507.81 : x
  2. Step 2: Convert to fraction form
    98,829.78/136,385.19 = 53,507.81/x
  3. Step 3: Cross multiply
    98,829.78x = 136,385.19 × 53,507.81
  4. Step 4: Simplify right side
    98,829.78x = 7,297,672,151.41
  5. Step 5: Solve for x
    x = 7,297,672,151.41/98,829.78
  6. Step 6: Final answer
    x = 73,840.82

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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.