Home / 71,977.22-99,328.92-39,712.95

Finding the Fourth Proportional to 71,977.22, 99,328.92 and 39,712.95

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Solution

The fourth proportional to 71,977.22, 99,328.92 and 39,712.95 is: 54,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,977.22 : 99,328.92 = 39,712.95 : x
  2. Step 2: Convert to fraction form
    71,977.22/99,328.92 = 39,712.95/x
  3. Step 3: Cross multiply
    71,977.22x = 99,328.92 × 39,712.95
  4. Step 4: Simplify right side
    71,977.22x = 3,944,644,433.51
  5. Step 5: Solve for x
    x = 3,944,644,433.51/71,977.22
  6. Step 6: Final answer
    x = 54,804.07

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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.