Home / 74,585.58-111,878.67-30,213.18

Finding the Fourth Proportional to 74,585.58, 111,878.67 and 30,213.18

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Solution

The fourth proportional to 74,585.58, 111,878.67 and 30,213.18 is: 45,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,585.58 : 111,878.67 = 30,213.18 : x
  2. Step 2: Convert to fraction form
    74,585.58/111,878.67 = 30,213.18/x
  3. Step 3: Cross multiply
    74,585.58x = 111,878.67 × 30,213.18
  4. Step 4: Simplify right side
    74,585.58x = 3,380,210,394.87
  5. Step 5: Solve for x
    x = 3,380,210,394.87/74,585.58
  6. Step 6: Final answer
    x = 45,319.89

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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.