Home / 72,320.09-108,462.40-30,200.49

Finding the Fourth Proportional to 72,320.09, 108,462.40 and 30,200.49

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Solution

The fourth proportional to 72,320.09, 108,462.40 and 30,200.49 is: 45,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,320.09 : 108,462.40 = 30,200.49 : x
  2. Step 2: Convert to fraction form
    72,320.09/108,462.40 = 30,200.49/x
  3. Step 3: Cross multiply
    72,320.09x = 108,462.40 × 30,200.49
  4. Step 4: Simplify right side
    72,320.09x = 3,275,617,551.07
  5. Step 5: Solve for x
    x = 3,275,617,551.07/72,320.09
  6. Step 6: Final answer
    x = 45,293.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.