Home / 72,584.52-100,161.06-40,747.20

Finding the Fourth Proportional to 72,584.52, 100,161.06 and 40,747.20

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Solution

The fourth proportional to 72,584.52, 100,161.06 and 40,747.20 is: 56,228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584.52 : 100,161.06 = 40,747.20 : x
  2. Step 2: Convert to fraction form
    72,584.52/100,161.06 = 40,747.20/x
  3. Step 3: Cross multiply
    72,584.52x = 100,161.06 × 40,747.20
  4. Step 4: Simplify right side
    72,584.52x = 4,081,282,744.03
  5. Step 5: Solve for x
    x = 4,081,282,744.03/72,584.52
  6. Step 6: Final answer
    x = 56,228.00

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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.