Home / 53,408.36-79,764.14-45,425.81

Finding the Fourth Proportional to 53,408.36, 79,764.14 and 45,425.81

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Solution

The fourth proportional to 53,408.36, 79,764.14 and 45,425.81 is: 67,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,408.36 : 79,764.14 = 45,425.81 : x
  2. Step 2: Convert to fraction form
    53,408.36/79,764.14 = 45,425.81/x
  3. Step 3: Cross multiply
    53,408.36x = 79,764.14 × 45,425.81
  4. Step 4: Simplify right side
    53,408.36x = 3,623,350,981.43
  5. Step 5: Solve for x
    x = 3,623,350,981.43/53,408.36
  6. Step 6: Final answer
    x = 67,842.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.