Home / 74,743.86-103,146.54-40,752.30

Finding the Fourth Proportional to 74,743.86, 103,146.54 and 40,752.30

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Solution

The fourth proportional to 74,743.86, 103,146.54 and 40,752.30 is: 56,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,743.86 : 103,146.54 = 40,752.30 : x
  2. Step 2: Convert to fraction form
    74,743.86/103,146.54 = 40,752.30/x
  3. Step 3: Cross multiply
    74,743.86x = 103,146.54 × 40,752.30
  4. Step 4: Simplify right side
    74,743.86x = 4,203,458,742.04
  5. Step 5: Solve for x
    x = 4,203,458,742.04/74,743.86
  6. Step 6: Final answer
    x = 56,238.18

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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.