Home / 58,582.12-87,855-21,137.33

Finding the Fourth Proportional to 58,582.12, 87,855 and 21,137.33

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Solution

The fourth proportional to 58,582.12, 87,855 and 21,137.33 is: 31,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,582.12 : 87,855 = 21,137.33 : x
  2. Step 2: Convert to fraction form
    58,582.12/87,855 = 21,137.33/x
  3. Step 3: Cross multiply
    58,582.12x = 87,855 × 21,137.33
  4. Step 4: Simplify right side
    58,582.12x = 1,857,020,127.15
  5. Step 5: Solve for x
    x = 1,857,020,127.15/58,582.12
  6. Step 6: Final answer
    x = 31,699.44

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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.