Home / 98,743.64-136,266.03-53,421.68

Finding the Fourth Proportional to 98,743.64, 136,266.03 and 53,421.68

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Solution

The fourth proportional to 98,743.64, 136,266.03 and 53,421.68 is: 73,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,743.64 : 136,266.03 = 53,421.68 : x
  2. Step 2: Convert to fraction form
    98,743.64/136,266.03 = 53,421.68/x
  3. Step 3: Cross multiply
    98,743.64x = 136,266.03 × 53,421.68
  4. Step 4: Simplify right side
    98,743.64x = 7,279,560,590.20
  5. Step 5: Solve for x
    x = 7,279,560,590.20/98,743.64
  6. Step 6: Final answer
    x = 73,721.82

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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.