Home / 98,743.74-136,266-53,421.84

Finding the Fourth Proportional to 98,743.74, 136,266 and 53,421.84

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Solution

The fourth proportional to 98,743.74, 136,266 and 53,421.84 is: 73,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,743.74 : 136,266 = 53,421.84 : x
  2. Step 2: Convert to fraction form
    98,743.74/136,266 = 53,421.84/x
  3. Step 3: Cross multiply
    98,743.74x = 136,266 × 53,421.84
  4. Step 4: Simplify right side
    98,743.74x = 7,279,580,449.44
  5. Step 5: Solve for x
    x = 7,279,580,449.44/98,743.74
  6. Step 6: Final answer
    x = 73,721.94

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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.