Home / 74,470.29-102,743.84-42,201.51

Finding the Fourth Proportional to 74,470.29, 102,743.84 and 42,201.51

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Solution

The fourth proportional to 74,470.29, 102,743.84 and 42,201.51 is: 58,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.29 : 102,743.84 = 42,201.51 : x
  2. Step 2: Convert to fraction form
    74,470.29/102,743.84 = 42,201.51/x
  3. Step 3: Cross multiply
    74,470.29x = 102,743.84 × 42,201.51
  4. Step 4: Simplify right side
    74,470.29x = 4,335,944,911.41
  5. Step 5: Solve for x
    x = 4,335,944,911.41/74,470.29
  6. Step 6: Final answer
    x = 58,223.82

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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.