Home / 72,273.92-99,747.52-40,455.04

Finding the Fourth Proportional to 72,273.92, 99,747.52 and 40,455.04

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Solution

The fourth proportional to 72,273.92, 99,747.52 and 40,455.04 is: 55,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273.92 : 99,747.52 = 40,455.04 : x
  2. Step 2: Convert to fraction form
    72,273.92/99,747.52 = 40,455.04/x
  3. Step 3: Cross multiply
    72,273.92x = 99,747.52 × 40,455.04
  4. Step 4: Simplify right side
    72,273.92x = 4,035,289,911.50
  5. Step 5: Solve for x
    x = 4,035,289,911.50/72,273.92
  6. Step 6: Final answer
    x = 55,833.28

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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.