Home / 74,477.72-111,740.88-30,081.62

Finding the Fourth Proportional to 74,477.72, 111,740.88 and 30,081.62

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Solution

The fourth proportional to 74,477.72, 111,740.88 and 30,081.62 is: 45,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,477.72 : 111,740.88 = 30,081.62 : x
  2. Step 2: Convert to fraction form
    74,477.72/111,740.88 = 30,081.62/x
  3. Step 3: Cross multiply
    74,477.72x = 111,740.88 × 30,081.62
  4. Step 4: Simplify right side
    74,477.72x = 3,361,346,690.63
  5. Step 5: Solve for x
    x = 3,361,346,690.63/74,477.72
  6. Step 6: Final answer
    x = 45,132.24

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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.