Home / 72,363.10-99,865.68-40,533.94

Finding the Fourth Proportional to 72,363.10, 99,865.68 and 40,533.94

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Solution

The fourth proportional to 72,363.10, 99,865.68 and 40,533.94 is: 55,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,363.10 : 99,865.68 = 40,533.94 : x
  2. Step 2: Convert to fraction form
    72,363.10/99,865.68 = 40,533.94/x
  3. Step 3: Cross multiply
    72,363.10x = 99,865.68 × 40,533.94
  4. Step 4: Simplify right side
    72,363.10x = 4,047,949,481.18
  5. Step 5: Solve for x
    x = 4,047,949,481.18/72,363.10
  6. Step 6: Final answer
    x = 55,939.41

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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.