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Finding the Fourth Proportional to 72,382.03, 99,886.03 and 40,550.71

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Solution

The fourth proportional to 72,382.03, 99,886.03 and 40,550.71 is: 55,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,382.03 : 99,886.03 = 40,550.71 : x
  2. Step 2: Convert to fraction form
    72,382.03/99,886.03 = 40,550.71/x
  3. Step 3: Cross multiply
    72,382.03x = 99,886.03 × 40,550.71
  4. Step 4: Simplify right side
    72,382.03x = 4,050,449,435.58
  5. Step 5: Solve for x
    x = 4,050,449,435.58/72,382.03
  6. Step 6: Final answer
    x = 55,959.32

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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.