Home / 74,621.10-102,973.77-40,628.73

Finding the Fourth Proportional to 74,621.10, 102,973.77 and 40,628.73

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Solution

The fourth proportional to 74,621.10, 102,973.77 and 40,628.73 is: 56,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,621.10 : 102,973.77 = 40,628.73 : x
  2. Step 2: Convert to fraction form
    74,621.10/102,973.77 = 40,628.73/x
  3. Step 3: Cross multiply
    74,621.10x = 102,973.77 × 40,628.73
  4. Step 4: Simplify right side
    74,621.10x = 4,183,693,498.41
  5. Step 5: Solve for x
    x = 4,183,693,498.41/74,621.10
  6. Step 6: Final answer
    x = 56,065.82

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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.