Home / 74,622.42-102,976.38-40,630.36

Finding the Fourth Proportional to 74,622.42, 102,976.38 and 40,630.36

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Solution

The fourth proportional to 74,622.42, 102,976.38 and 40,630.36 is: 56,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.42 : 102,976.38 = 40,630.36 : x
  2. Step 2: Convert to fraction form
    74,622.42/102,976.38 = 40,630.36/x
  3. Step 3: Cross multiply
    74,622.42x = 102,976.38 × 40,630.36
  4. Step 4: Simplify right side
    74,622.42x = 4,183,967,390.90
  5. Step 5: Solve for x
    x = 4,183,967,390.90/74,622.42
  6. Step 6: Final answer
    x = 56,068.50

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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.