Home / 72,004.80-99,366.88-40,175.04

Finding the Fourth Proportional to 72,004.80, 99,366.88 and 40,175.04

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Solution

The fourth proportional to 72,004.80, 99,366.88 and 40,175.04 is: 55,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004.80 : 99,366.88 = 40,175.04 : x
  2. Step 2: Convert to fraction form
    72,004.80/99,366.88 = 40,175.04/x
  3. Step 3: Cross multiply
    72,004.80x = 99,366.88 × 40,175.04
  4. Step 4: Simplify right side
    72,004.80x = 3,992,068,378.68
  5. Step 5: Solve for x
    x = 3,992,068,378.68/72,004.80
  6. Step 6: Final answer
    x = 55,441.70

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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.