Home / 74,315.60-102,454.28-53,057.92

Finding the Fourth Proportional to 74,315.60, 102,454.28 and 53,057.92

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Solution

The fourth proportional to 74,315.60, 102,454.28 and 53,057.92 is: 73,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.60 : 102,454.28 = 53,057.92 : x
  2. Step 2: Convert to fraction form
    74,315.60/102,454.28 = 53,057.92/x
  3. Step 3: Cross multiply
    74,315.60x = 102,454.28 × 53,057.92
  4. Step 4: Simplify right side
    74,315.60x = 5,436,010,991.90
  5. Step 5: Solve for x
    x = 5,436,010,991.90/74,315.60
  6. Step 6: Final answer
    x = 73,147.64

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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.