Home / 52,987.47-79,463.66-21,389.37

Finding the Fourth Proportional to 52,987.47, 79,463.66 and 21,389.37

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Solution

The fourth proportional to 52,987.47, 79,463.66 and 21,389.37 is: 32,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,987.47 : 79,463.66 = 21,389.37 : x
  2. Step 2: Convert to fraction form
    52,987.47/79,463.66 = 21,389.37/x
  3. Step 3: Cross multiply
    52,987.47x = 79,463.66 × 21,389.37
  4. Step 4: Simplify right side
    52,987.47x = 1,699,677,518.35
  5. Step 5: Solve for x
    x = 1,699,677,518.35/52,987.47
  6. Step 6: Final answer
    x = 32,076.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.