Home / 71,137.04-98,171.09-39,307.98

Finding the Fourth Proportional to 71,137.04, 98,171.09 and 39,307.98

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Solution

The fourth proportional to 71,137.04, 98,171.09 and 39,307.98 is: 54,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,137.04 : 98,171.09 = 39,307.98 : x
  2. Step 2: Convert to fraction form
    71,137.04/98,171.09 = 39,307.98/x
  3. Step 3: Cross multiply
    71,137.04x = 98,171.09 × 39,307.98
  4. Step 4: Simplify right side
    71,137.04x = 3,858,907,561.30
  5. Step 5: Solve for x
    x = 3,858,907,561.30/71,137.04
  6. Step 6: Final answer
    x = 54,246.11

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1.5x scale

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.