Home / 74,976.40-103,467.81-40,984.35

Finding the Fourth Proportional to 74,976.40, 103,467.81 and 40,984.35

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Solution

The fourth proportional to 74,976.40, 103,467.81 and 40,984.35 is: 56,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,976.40 : 103,467.81 = 40,984.35 : x
  2. Step 2: Convert to fraction form
    74,976.40/103,467.81 = 40,984.35/x
  3. Step 3: Cross multiply
    74,976.40x = 103,467.81 × 40,984.35
  4. Step 4: Simplify right side
    74,976.40x = 4,240,560,938.77
  5. Step 5: Solve for x
    x = 4,240,560,938.77/74,976.40
  6. Step 6: Final answer
    x = 56,558.61

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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.