Home / 74,975.20-103,415.28-54,522.88

Finding the Fourth Proportional to 74,975.20, 103,415.28 and 54,522.88

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Solution

The fourth proportional to 74,975.20, 103,415.28 and 54,522.88 is: 75,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.20 : 103,415.28 = 54,522.88 : x
  2. Step 2: Convert to fraction form
    74,975.20/103,415.28 = 54,522.88/x
  3. Step 3: Cross multiply
    74,975.20x = 103,415.28 × 54,522.88
  4. Step 4: Simplify right side
    74,975.20x = 5,638,498,901.61
  5. Step 5: Solve for x
    x = 5,638,498,901.61/74,975.20
  6. Step 6: Final answer
    x = 75,204.85

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1.5x scale

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.