Home / 74,878.42-112,220.68-30,453.58

Finding the Fourth Proportional to 74,878.42, 112,220.68 and 30,453.58

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Solution

The fourth proportional to 74,878.42, 112,220.68 and 30,453.58 is: 45,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,878.42 : 112,220.68 = 30,453.58 : x
  2. Step 2: Convert to fraction form
    74,878.42/112,220.68 = 30,453.58/x
  3. Step 3: Cross multiply
    74,878.42x = 112,220.68 × 30,453.58
  4. Step 4: Simplify right side
    74,878.42x = 3,417,521,456.03
  5. Step 5: Solve for x
    x = 3,417,521,456.03/74,878.42
  6. Step 6: Final answer
    x = 45,640.94

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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.