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Finding the Fourth Proportional to 71,100.10, 98,123.94 and 40,895.20

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Solution

The fourth proportional to 71,100.10, 98,123.94 and 40,895.20 is: 56,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,100.10 : 98,123.94 = 40,895.20 : x
  2. Step 2: Convert to fraction form
    71,100.10/98,123.94 = 40,895.20/x
  3. Step 3: Cross multiply
    71,100.10x = 98,123.94 × 40,895.20
  4. Step 4: Simplify right side
    71,100.10x = 4,012,798,151.09
  5. Step 5: Solve for x
    x = 4,012,798,151.09/71,100.10
  6. Step 6: Final answer
    x = 56,438.71

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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.