Home / 74,744.82-103,152.96-45,685.68

Finding the Fourth Proportional to 74,744.82, 103,152.96 and 45,685.68

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Solution

The fourth proportional to 74,744.82, 103,152.96 and 45,685.68 is: 63,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,744.82 : 103,152.96 = 45,685.68 : x
  2. Step 2: Convert to fraction form
    74,744.82/103,152.96 = 45,685.68/x
  3. Step 3: Cross multiply
    74,744.82x = 103,152.96 × 45,685.68
  4. Step 4: Simplify right side
    74,744.82x = 4,712,613,121.61
  5. Step 5: Solve for x
    x = 4,712,613,121.61/74,744.82
  6. Step 6: Final answer
    x = 63,049.36

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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.