Home / 71,913.12-99,240.57-40,084.04

Finding the Fourth Proportional to 71,913.12, 99,240.57 and 40,084.04

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Solution

The fourth proportional to 71,913.12, 99,240.57 and 40,084.04 is: 55,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913.12 : 99,240.57 = 40,084.04 : x
  2. Step 2: Convert to fraction form
    71,913.12/99,240.57 = 40,084.04/x
  3. Step 3: Cross multiply
    71,913.12x = 99,240.57 × 40,084.04
  4. Step 4: Simplify right side
    71,913.12x = 3,977,962,280.88
  5. Step 5: Solve for x
    x = 3,977,962,280.88/71,913.12
  6. Step 6: Final answer
    x = 55,316.22

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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.