Home / 64,780.48-89,397.36-36,486.64

Finding the Fourth Proportional to 64,780.48, 89,397.36 and 36,486.64

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Solution

The fourth proportional to 64,780.48, 89,397.36 and 36,486.64 is: 50,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.48 : 89,397.36 = 36,486.64 : x
  2. Step 2: Convert to fraction form
    64,780.48/89,397.36 = 36,486.64/x
  3. Step 3: Cross multiply
    64,780.48x = 89,397.36 × 36,486.64
  4. Step 4: Simplify right side
    64,780.48x = 3,261,809,291.27
  5. Step 5: Solve for x
    x = 3,261,809,291.27/64,780.48
  6. Step 6: Final answer
    x = 50,351.73

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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.