Home / 72,371.24-99,860.70-40,541.48

Finding the Fourth Proportional to 72,371.24, 99,860.70 and 40,541.48

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Solution

The fourth proportional to 72,371.24, 99,860.70 and 40,541.48 is: 55,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,371.24 : 99,860.70 = 40,541.48 : x
  2. Step 2: Convert to fraction form
    72,371.24/99,860.70 = 40,541.48/x
  3. Step 3: Cross multiply
    72,371.24x = 99,860.70 × 40,541.48
  4. Step 4: Simplify right side
    72,371.24x = 4,048,500,571.84
  5. Step 5: Solve for x
    x = 4,048,500,571.84/72,371.24
  6. Step 6: Final answer
    x = 55,940.74

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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.