Home / 85,158.64-117,513.25-51,146.92

Finding the Fourth Proportional to 85,158.64, 117,513.25 and 51,146.92

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Solution

The fourth proportional to 85,158.64, 117,513.25 and 51,146.92 is: 70,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,158.64 : 117,513.25 = 51,146.92 : x
  2. Step 2: Convert to fraction form
    85,158.64/117,513.25 = 51,146.92/x
  3. Step 3: Cross multiply
    85,158.64x = 117,513.25 × 51,146.92
  4. Step 4: Simplify right side
    85,158.64x = 6,010,440,796.69
  5. Step 5: Solve for x
    x = 6,010,440,796.69/85,158.64
  6. Step 6: Final answer
    x = 70,579.34

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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.