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Finding the Fourth Proportional to 75,153.50, 103,715.10 and 41,619.50

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Solution

The fourth proportional to 75,153.50, 103,715.10 and 41,619.50 is: 57,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.50 : 103,715.10 = 41,619.50 : x
  2. Step 2: Convert to fraction form
    75,153.50/103,715.10 = 41,619.50/x
  3. Step 3: Cross multiply
    75,153.50x = 103,715.10 × 41,619.50
  4. Step 4: Simplify right side
    75,153.50x = 4,316,570,604.45
  5. Step 5: Solve for x
    x = 4,316,570,604.45/75,153.50
  6. Step 6: Final answer
    x = 57,436.72

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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.