Home / 72,260.48-99,709.92-40,425.92

Finding the Fourth Proportional to 72,260.48, 99,709.92 and 40,425.92

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Solution

The fourth proportional to 72,260.48, 99,709.92 and 40,425.92 is: 55,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260.48 : 99,709.92 = 40,425.92 : x
  2. Step 2: Convert to fraction form
    72,260.48/99,709.92 = 40,425.92/x
  3. Step 3: Cross multiply
    72,260.48x = 99,709.92 × 40,425.92
  4. Step 4: Simplify right side
    72,260.48x = 4,030,865,249.13
  5. Step 5: Solve for x
    x = 4,030,865,249.13/72,260.48
  6. Step 6: Final answer
    x = 55,782.43

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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.