Home / 74,821.89-103,256.40-40,832.57

Finding the Fourth Proportional to 74,821.89, 103,256.40 and 40,832.57

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Solution

The fourth proportional to 74,821.89, 103,256.40 and 40,832.57 is: 56,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.89 : 103,256.40 = 40,832.57 : x
  2. Step 2: Convert to fraction form
    74,821.89/103,256.40 = 40,832.57/x
  3. Step 3: Cross multiply
    74,821.89x = 103,256.40 × 40,832.57
  4. Step 4: Simplify right side
    74,821.89x = 4,216,223,976.79
  5. Step 5: Solve for x
    x = 4,216,223,976.79/74,821.89
  6. Step 6: Final answer
    x = 56,350.14

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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.