Home / 75,418.13-113,174.84-42,160.01

Finding the Fourth Proportional to 75,418.13, 113,174.84 and 42,160.01

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Solution

The fourth proportional to 75,418.13, 113,174.84 and 42,160.01 is: 63,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418.13 : 113,174.84 = 42,160.01 : x
  2. Step 2: Convert to fraction form
    75,418.13/113,174.84 = 42,160.01/x
  3. Step 3: Cross multiply
    75,418.13x = 113,174.84 × 42,160.01
  4. Step 4: Simplify right side
    75,418.13x = 4,771,451,609.47
  5. Step 5: Solve for x
    x = 4,771,451,609.47/75,418.13
  6. Step 6: Final answer
    x = 63,266.64

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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.