Home / 71,913.32-99,240.88-40,084.28

Finding the Fourth Proportional to 71,913.32, 99,240.88 and 40,084.28

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Solution

The fourth proportional to 71,913.32, 99,240.88 and 40,084.28 is: 55,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913.32 : 99,240.88 = 40,084.28 : x
  2. Step 2: Convert to fraction form
    71,913.32/99,240.88 = 40,084.28/x
  3. Step 3: Cross multiply
    71,913.32x = 99,240.88 × 40,084.28
  4. Step 4: Simplify right side
    71,913.32x = 3,977,999,221.37
  5. Step 5: Solve for x
    x = 3,977,999,221.37/71,913.32
  6. Step 6: Final answer
    x = 55,316.58

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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.