Home / 85,447.44-117,908.16-50,985.78

Finding the Fourth Proportional to 85,447.44, 117,908.16 and 50,985.78

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Solution

The fourth proportional to 85,447.44, 117,908.16 and 50,985.78 is: 70,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,447.44 : 117,908.16 = 50,985.78 : x
  2. Step 2: Convert to fraction form
    85,447.44/117,908.16 = 50,985.78/x
  3. Step 3: Cross multiply
    85,447.44x = 117,908.16 × 50,985.78
  4. Step 4: Simplify right side
    85,447.44x = 6,011,639,505.96
  5. Step 5: Solve for x
    x = 6,011,639,505.96/85,447.44
  6. Step 6: Final answer
    x = 70,354.82

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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.