Home / 71,143.77-98,178.71-38,879.04

Finding the Fourth Proportional to 71,143.77, 98,178.71 and 38,879.04

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Solution

The fourth proportional to 71,143.77, 98,178.71 and 38,879.04 is: 53,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,143.77 : 98,178.71 = 38,879.04 : x
  2. Step 2: Convert to fraction form
    71,143.77/98,178.71 = 38,879.04/x
  3. Step 3: Cross multiply
    71,143.77x = 98,178.71 × 38,879.04
  4. Step 4: Simplify right side
    71,143.77x = 3,817,093,993.24
  5. Step 5: Solve for x
    x = 3,817,093,993.24/71,143.77
  6. Step 6: Final answer
    x = 53,653.24

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1.5x scale

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.