Home / 72,462.45-99,998.09-40,201.96

Finding the Fourth Proportional to 72,462.45, 99,998.09 and 40,201.96

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Solution

The fourth proportional to 72,462.45, 99,998.09 and 40,201.96 is: 55,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.45 : 99,998.09 = 40,201.96 : x
  2. Step 2: Convert to fraction form
    72,462.45/99,998.09 = 40,201.96/x
  3. Step 3: Cross multiply
    72,462.45x = 99,998.09 × 40,201.96
  4. Step 4: Simplify right side
    72,462.45x = 4,020,119,214.26
  5. Step 5: Solve for x
    x = 4,020,119,214.26/72,462.45
  6. Step 6: Final answer
    x = 55,478.65

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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.