Home / 85,304.22-127,917.45-43,780.38

Finding the Fourth Proportional to 85,304.22, 127,917.45 and 43,780.38

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Solution

The fourth proportional to 85,304.22, 127,917.45 and 43,780.38 is: 65,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,304.22 : 127,917.45 = 43,780.38 : x
  2. Step 2: Convert to fraction form
    85,304.22/127,917.45 = 43,780.38/x
  3. Step 3: Cross multiply
    85,304.22x = 127,917.45 × 43,780.38
  4. Step 4: Simplify right side
    85,304.22x = 5,600,274,569.63
  5. Step 5: Solve for x
    x = 5,600,274,569.63/85,304.22
  6. Step 6: Final answer
    x = 65,650.62

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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.