Home / 71,151.54-98,185.93-39,319.75

Finding the Fourth Proportional to 71,151.54, 98,185.93 and 39,319.75

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Solution

The fourth proportional to 71,151.54, 98,185.93 and 39,319.75 is: 54,259.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.54 : 98,185.93 = 39,319.75 : x
  2. Step 2: Convert to fraction form
    71,151.54/98,185.93 = 39,319.75/x
  3. Step 3: Cross multiply
    71,151.54x = 98,185.93 × 39,319.75
  4. Step 4: Simplify right side
    71,151.54x = 3,860,646,221.12
  5. Step 5: Solve for x
    x = 3,860,646,221.12/71,151.54
  6. Step 6: Final answer
    x = 54,259.49

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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.