Home / 98,938.76-136,537.28-53,617.64

Finding the Fourth Proportional to 98,938.76, 136,537.28 and 53,617.64

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Solution

The fourth proportional to 98,938.76, 136,537.28 and 53,617.64 is: 73,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,938.76 : 136,537.28 = 53,617.64 : x
  2. Step 2: Convert to fraction form
    98,938.76/136,537.28 = 53,617.64/x
  3. Step 3: Cross multiply
    98,938.76x = 136,537.28 × 53,617.64
  4. Step 4: Simplify right side
    98,938.76x = 7,320,806,725.62
  5. Step 5: Solve for x
    x = 7,320,806,725.62/98,938.76
  6. Step 6: Final answer
    x = 73,993.31

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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.