Home / 71,669.81-99,005.49-57,424.25

Finding the Fourth Proportional to 71,669.81, 99,005.49 and 57,424.25

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Solution

The fourth proportional to 71,669.81, 99,005.49 and 57,424.25 is: 79,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,669.81 : 99,005.49 = 57,424.25 : x
  2. Step 2: Convert to fraction form
    71,669.81/99,005.49 = 57,424.25/x
  3. Step 3: Cross multiply
    71,669.81x = 99,005.49 × 57,424.25
  4. Step 4: Simplify right side
    71,669.81x = 5,685,315,514.11
  5. Step 5: Solve for x
    x = 5,685,315,514.11/71,669.81
  6. Step 6: Final answer
    x = 79,326.51

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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.