Home / 98,741.79-136,243.53-58,435.38

Finding the Fourth Proportional to 98,741.79, 136,243.53 and 58,435.38

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Solution

The fourth proportional to 98,741.79, 136,243.53 and 58,435.38 is: 80,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,741.79 : 136,243.53 = 58,435.38 : x
  2. Step 2: Convert to fraction form
    98,741.79/136,243.53 = 58,435.38/x
  3. Step 3: Cross multiply
    98,741.79x = 136,243.53 × 58,435.38
  4. Step 4: Simplify right side
    98,741.79x = 7,961,442,448.09
  5. Step 5: Solve for x
    x = 7,961,442,448.09/98,741.79
  6. Step 6: Final answer
    x = 80,628.91

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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.