Home / 78,208.34-117,330.73-25,614.63

Finding the Fourth Proportional to 78,208.34, 117,330.73 and 25,614.63

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Solution

The fourth proportional to 78,208.34, 117,330.73 and 25,614.63 is: 38,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,208.34 : 117,330.73 = 25,614.63 : x
  2. Step 2: Convert to fraction form
    78,208.34/117,330.73 = 25,614.63/x
  3. Step 3: Cross multiply
    78,208.34x = 117,330.73 × 25,614.63
  4. Step 4: Simplify right side
    78,208.34x = 3,005,383,172.54
  5. Step 5: Solve for x
    x = 3,005,383,172.54/78,208.34
  6. Step 6: Final answer
    x = 38,427.91

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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.