Home / 74,957.28-103,432.24-41,421.28

Finding the Fourth Proportional to 74,957.28, 103,432.24 and 41,421.28

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Solution

The fourth proportional to 74,957.28, 103,432.24 and 41,421.28 is: 57,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,957.28 : 103,432.24 = 41,421.28 : x
  2. Step 2: Convert to fraction form
    74,957.28/103,432.24 = 41,421.28/x
  3. Step 3: Cross multiply
    74,957.28x = 103,432.24 × 41,421.28
  4. Step 4: Simplify right side
    74,957.28x = 4,284,295,774.07
  5. Step 5: Solve for x
    x = 4,284,295,774.07/74,957.28
  6. Step 6: Final answer
    x = 57,156.50

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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.