Home / 75,979.58-114,390.10-67,145.63

Finding the Fourth Proportional to 75,979.58, 114,390.10 and 67,145.63

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Solution

The fourth proportional to 75,979.58, 114,390.10 and 67,145.63 is: 101,090.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,979.58 : 114,390.10 = 67,145.63 : x
  2. Step 2: Convert to fraction form
    75,979.58/114,390.10 = 67,145.63/x
  3. Step 3: Cross multiply
    75,979.58x = 114,390.10 × 67,145.63
  4. Step 4: Simplify right side
    75,979.58x = 7,680,794,842.24
  5. Step 5: Solve for x
    x = 7,680,794,842.24/75,979.58
  6. Step 6: Final answer
    x = 101,090.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.