Home / 74,145.88-102,346.24-45,074.12

Finding the Fourth Proportional to 74,145.88, 102,346.24 and 45,074.12

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Solution

The fourth proportional to 74,145.88, 102,346.24 and 45,074.12 is: 62,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.88 : 102,346.24 = 45,074.12 : x
  2. Step 2: Convert to fraction form
    74,145.88/102,346.24 = 45,074.12/x
  3. Step 3: Cross multiply
    74,145.88x = 102,346.24 × 45,074.12
  4. Step 4: Simplify right side
    74,145.88x = 4,613,166,703.31
  5. Step 5: Solve for x
    x = 4,613,166,703.31/74,145.88
  6. Step 6: Final answer
    x = 62,217.44

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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.