Home / 74,121.28-102,334.49-48,672.80

Finding the Fourth Proportional to 74,121.28, 102,334.49 and 48,672.80

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Solution

The fourth proportional to 74,121.28, 102,334.49 and 48,672.80 is: 67,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,121.28 : 102,334.49 = 48,672.80 : x
  2. Step 2: Convert to fraction form
    74,121.28/102,334.49 = 48,672.80/x
  3. Step 3: Cross multiply
    74,121.28x = 102,334.49 × 48,672.80
  4. Step 4: Simplify right side
    74,121.28x = 4,980,905,976.11
  5. Step 5: Solve for x
    x = 4,980,905,976.11/74,121.28
  6. Step 6: Final answer
    x = 67,199.41

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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.