Home / 71,151.30-98,185.01-39,318.30

Finding the Fourth Proportional to 71,151.30, 98,185.01 and 39,318.30

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Solution

The fourth proportional to 71,151.30, 98,185.01 and 39,318.30 is: 54,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.30 : 98,185.01 = 39,318.30 : x
  2. Step 2: Convert to fraction form
    71,151.30/98,185.01 = 39,318.30/x
  3. Step 3: Cross multiply
    71,151.30x = 98,185.01 × 39,318.30
  4. Step 4: Simplify right side
    71,151.30x = 3,860,467,482.09
  5. Step 5: Solve for x
    x = 3,860,467,482.09/71,151.30
  6. Step 6: Final answer
    x = 54,257.16

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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.