Home / 55,476.36-83,206.34-20,407.82

Finding the Fourth Proportional to 55,476.36, 83,206.34 and 20,407.82

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Solution

The fourth proportional to 55,476.36, 83,206.34 and 20,407.82 is: 30,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,476.36 : 83,206.34 = 20,407.82 : x
  2. Step 2: Convert to fraction form
    55,476.36/83,206.34 = 20,407.82/x
  3. Step 3: Cross multiply
    55,476.36x = 83,206.34 × 20,407.82
  4. Step 4: Simplify right side
    55,476.36x = 1,698,059,491.51
  5. Step 5: Solve for x
    x = 1,698,059,491.51/55,476.36
  6. Step 6: Final answer
    x = 30,608.70

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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.