Home / 71,916.57-99,244.98-40,084.79

Finding the Fourth Proportional to 71,916.57, 99,244.98 and 40,084.79

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Solution

The fourth proportional to 71,916.57, 99,244.98 and 40,084.79 is: 55,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,916.57 : 99,244.98 = 40,084.79 : x
  2. Step 2: Convert to fraction form
    71,916.57/99,244.98 = 40,084.79/x
  3. Step 3: Cross multiply
    71,916.57x = 99,244.98 × 40,084.79
  4. Step 4: Simplify right side
    71,916.57x = 3,978,213,485.21
  5. Step 5: Solve for x
    x = 3,978,213,485.21/71,916.57
  6. Step 6: Final answer
    x = 55,317.06

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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.