Home / 74,180.16-102,314.40-54,043.20

Finding the Fourth Proportional to 74,180.16, 102,314.40 and 54,043.20

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Solution

The fourth proportional to 74,180.16, 102,314.40 and 54,043.20 is: 74,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.16 : 102,314.40 = 54,043.20 : x
  2. Step 2: Convert to fraction form
    74,180.16/102,314.40 = 54,043.20/x
  3. Step 3: Cross multiply
    74,180.16x = 102,314.40 × 54,043.20
  4. Step 4: Simplify right side
    74,180.16x = 5,529,397,582.08
  5. Step 5: Solve for x
    x = 5,529,397,582.08/74,180.16
  6. Step 6: Final answer
    x = 74,540.11

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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.