Home / 74,555.46-102,889.38-42,730.51

Finding the Fourth Proportional to 74,555.46, 102,889.38 and 42,730.51

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Solution

The fourth proportional to 74,555.46, 102,889.38 and 42,730.51 is: 58,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,555.46 : 102,889.38 = 42,730.51 : x
  2. Step 2: Convert to fraction form
    74,555.46/102,889.38 = 42,730.51/x
  3. Step 3: Cross multiply
    74,555.46x = 102,889.38 × 42,730.51
  4. Step 4: Simplify right side
    74,555.46x = 4,396,515,777.97
  5. Step 5: Solve for x
    x = 4,396,515,777.97/74,555.46
  6. Step 6: Final answer
    x = 58,969.74

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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.