Home / 98,860.78-136,427.25-53,538.04

Finding the Fourth Proportional to 98,860.78, 136,427.25 and 53,538.04

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Solution

The fourth proportional to 98,860.78, 136,427.25 and 53,538.04 is: 73,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,860.78 : 136,427.25 = 53,538.04 : x
  2. Step 2: Convert to fraction form
    98,860.78/136,427.25 = 53,538.04/x
  3. Step 3: Cross multiply
    98,860.78x = 136,427.25 × 53,538.04
  4. Step 4: Simplify right side
    98,860.78x = 7,304,047,567.59
  5. Step 5: Solve for x
    x = 7,304,047,567.59/98,860.78
  6. Step 6: Final answer
    x = 73,882.16

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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.