Home / 78,042.22-107,691.46-45,783.34

Finding the Fourth Proportional to 78,042.22, 107,691.46 and 45,783.34

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Solution

The fourth proportional to 78,042.22, 107,691.46 and 45,783.34 is: 63,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,042.22 : 107,691.46 = 45,783.34 : x
  2. Step 2: Convert to fraction form
    78,042.22/107,691.46 = 45,783.34/x
  3. Step 3: Cross multiply
    78,042.22x = 107,691.46 × 45,783.34
  4. Step 4: Simplify right side
    78,042.22x = 4,930,474,728.28
  5. Step 5: Solve for x
    x = 4,930,474,728.28/78,042.22
  6. Step 6: Final answer
    x = 63,177.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.