Home / 71,962.83-107,220.71-67,938.75

Finding the Fourth Proportional to 71,962.83, 107,220.71 and 67,938.75

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Solution

The fourth proportional to 71,962.83, 107,220.71 and 67,938.75 is: 101,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.83 : 107,220.71 = 67,938.75 : x
  2. Step 2: Convert to fraction form
    71,962.83/107,220.71 = 67,938.75/x
  3. Step 3: Cross multiply
    71,962.83x = 107,220.71 × 67,938.75
  4. Step 4: Simplify right side
    71,962.83x = 7,284,441,181.36
  5. Step 5: Solve for x
    x = 7,284,441,181.36/71,962.83
  6. Step 6: Final answer
    x = 101,225.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.