Home / 72,212.23-99,662.16-40,382.92

Finding the Fourth Proportional to 72,212.23, 99,662.16 and 40,382.92

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Solution

The fourth proportional to 72,212.23, 99,662.16 and 40,382.92 is: 55,733.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,212.23 : 99,662.16 = 40,382.92 : x
  2. Step 2: Convert to fraction form
    72,212.23/99,662.16 = 40,382.92/x
  3. Step 3: Cross multiply
    72,212.23x = 99,662.16 × 40,382.92
  4. Step 4: Simplify right side
    72,212.23x = 4,024,649,034.31
  5. Step 5: Solve for x
    x = 4,024,649,034.31/72,212.23
  6. Step 6: Final answer
    x = 55,733.62

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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.