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Finding the Fourth Proportional to 71,757.64, 99,007.14 and 43,453

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Solution

The fourth proportional to 71,757.64, 99,007.14 and 43,453 is: 59,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,757.64 : 99,007.14 = 43,453 : x
  2. Step 2: Convert to fraction form
    71,757.64/99,007.14 = 43,453/x
  3. Step 3: Cross multiply
    71,757.64x = 99,007.14 × 43,453
  4. Step 4: Simplify right side
    71,757.64x = 4,302,157,254.42
  5. Step 5: Solve for x
    x = 4,302,157,254.42/71,757.64
  6. Step 6: Final answer
    x = 59,954.00

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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.