Home / 78,207.74-117,309.33-19,042.56

Finding the Fourth Proportional to 78,207.74, 117,309.33 and 19,042.56

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Solution

The fourth proportional to 78,207.74, 117,309.33 and 19,042.56 is: 28,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,207.74 : 117,309.33 = 19,042.56 : x
  2. Step 2: Convert to fraction form
    78,207.74/117,309.33 = 19,042.56/x
  3. Step 3: Cross multiply
    78,207.74x = 117,309.33 × 19,042.56
  4. Step 4: Simplify right side
    78,207.74x = 2,233,869,955.08
  5. Step 5: Solve for x
    x = 2,233,869,955.08/78,207.74
  6. Step 6: Final answer
    x = 28,563.28

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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.