Home / 98,976.40-136,587.56-53,654.64

Finding the Fourth Proportional to 98,976.40, 136,587.56 and 53,654.64

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Solution

The fourth proportional to 98,976.40, 136,587.56 and 53,654.64 is: 74,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,976.40 : 136,587.56 = 53,654.64 : x
  2. Step 2: Convert to fraction form
    98,976.40/136,587.56 = 53,654.64/x
  3. Step 3: Cross multiply
    98,976.40x = 136,587.56 × 53,654.64
  4. Step 4: Simplify right side
    98,976.40x = 7,328,556,360.28
  5. Step 5: Solve for x
    x = 7,328,556,360.28/98,976.40
  6. Step 6: Final answer
    x = 74,043.47

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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.