Home / 53,305.99-79,929.57-21,707.95

Finding the Fourth Proportional to 53,305.99, 79,929.57 and 21,707.95

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Solution

The fourth proportional to 53,305.99, 79,929.57 and 21,707.95 is: 32,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,305.99 : 79,929.57 = 21,707.95 : x
  2. Step 2: Convert to fraction form
    53,305.99/79,929.57 = 21,707.95/x
  3. Step 3: Cross multiply
    53,305.99x = 79,929.57 × 21,707.95
  4. Step 4: Simplify right side
    53,305.99x = 1,735,107,109.08
  5. Step 5: Solve for x
    x = 1,735,107,109.08/53,305.99
  6. Step 6: Final answer
    x = 32,549.95

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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.