Home / 115,021.51-172,282.75-55,732.84

Finding the Fourth Proportional to 115,021.51, 172,282.75 and 55,732.84

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Solution

The fourth proportional to 115,021.51, 172,282.75 and 55,732.84 is: 83,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.51 : 172,282.75 = 55,732.84 : x
  2. Step 2: Convert to fraction form
    115,021.51/172,282.75 = 55,732.84/x
  3. Step 3: Cross multiply
    115,021.51x = 172,282.75 × 55,732.84
  4. Step 4: Simplify right side
    115,021.51x = 9,601,806,940.51
  5. Step 5: Solve for x
    x = 9,601,806,940.51/115,021.51
  6. Step 6: Final answer
    x = 83,478.36

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1.5x scale

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.