Home / 85,157.64-117,511.88-51,145.92

Finding the Fourth Proportional to 85,157.64, 117,511.88 and 51,145.92

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Solution

The fourth proportional to 85,157.64, 117,511.88 and 51,145.92 is: 70,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,157.64 : 117,511.88 = 51,145.92 : x
  2. Step 2: Convert to fraction form
    85,157.64/117,511.88 = 51,145.92/x
  3. Step 3: Cross multiply
    85,157.64x = 117,511.88 × 51,145.92
  4. Step 4: Simplify right side
    85,157.64x = 6,010,252,957.80
  5. Step 5: Solve for x
    x = 6,010,252,957.80/85,157.64
  6. Step 6: Final answer
    x = 70,577.97

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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.