Home / 97,987.26-135,218.48-57,702.72

Finding the Fourth Proportional to 97,987.26, 135,218.48 and 57,702.72

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Solution

The fourth proportional to 97,987.26, 135,218.48 and 57,702.72 is: 79,627.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,987.26 : 135,218.48 = 57,702.72 : x
  2. Step 2: Convert to fraction form
    97,987.26/135,218.48 = 57,702.72/x
  3. Step 3: Cross multiply
    97,987.26x = 135,218.48 × 57,702.72
  4. Step 4: Simplify right side
    97,987.26x = 7,802,474,090.27
  5. Step 5: Solve for x
    x = 7,802,474,090.27/97,987.26
  6. Step 6: Final answer
    x = 79,627.43

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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.