Home / 70,167.47-105,180.29-30,212.51

Finding the Fourth Proportional to 70,167.47, 105,180.29 and 30,212.51

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Solution

The fourth proportional to 70,167.47, 105,180.29 and 30,212.51 is: 45,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167.47 : 105,180.29 = 30,212.51 : x
  2. Step 2: Convert to fraction form
    70,167.47/105,180.29 = 30,212.51/x
  3. Step 3: Cross multiply
    70,167.47x = 105,180.29 × 30,212.51
  4. Step 4: Simplify right side
    70,167.47x = 3,177,760,412.37
  5. Step 5: Solve for x
    x = 3,177,760,412.37/70,167.47
  6. Step 6: Final answer
    x = 45,288.23

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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.