Home / 49,112.88-73,668.80-21,009.12

Finding the Fourth Proportional to 49,112.88, 73,668.80 and 21,009.12

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Solution

The fourth proportional to 49,112.88, 73,668.80 and 21,009.12 is: 31,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,112.88 : 73,668.80 = 21,009.12 : x
  2. Step 2: Convert to fraction form
    49,112.88/73,668.80 = 21,009.12/x
  3. Step 3: Cross multiply
    49,112.88x = 73,668.80 × 21,009.12
  4. Step 4: Simplify right side
    49,112.88x = 1,547,716,659.46
  5. Step 5: Solve for x
    x = 1,547,716,659.46/49,112.88
  6. Step 6: Final answer
    x = 31,513.46

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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.