Home / 71,962.08-107,219.58-67,938

Finding the Fourth Proportional to 71,962.08, 107,219.58 and 67,938

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Solution

The fourth proportional to 71,962.08, 107,219.58 and 67,938 is: 101,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.08 : 107,219.58 = 67,938 : x
  2. Step 2: Convert to fraction form
    71,962.08/107,219.58 = 67,938/x
  3. Step 3: Cross multiply
    71,962.08x = 107,219.58 × 67,938
  4. Step 4: Simplify right side
    71,962.08x = 7,284,283,826.04
  5. Step 5: Solve for x
    x = 7,284,283,826.04/71,962.08
  6. Step 6: Final answer
    x = 101,223.92

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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.