Home / 72,237.49-99,682.32-40,400.23

Finding the Fourth Proportional to 72,237.49, 99,682.32 and 40,400.23

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Solution

The fourth proportional to 72,237.49, 99,682.32 and 40,400.23 is: 55,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,237.49 : 99,682.32 = 40,400.23 : x
  2. Step 2: Convert to fraction form
    72,237.49/99,682.32 = 40,400.23/x
  3. Step 3: Cross multiply
    72,237.49x = 99,682.32 × 40,400.23
  4. Step 4: Simplify right side
    72,237.49x = 4,027,188,654.93
  5. Step 5: Solve for x
    x = 4,027,188,654.93/72,237.49
  6. Step 6: Final answer
    x = 55,749.29

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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.