Home / 71,151.54-98,185.92-39,319.76

Finding the Fourth Proportional to 71,151.54, 98,185.92 and 39,319.76

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Solution

The fourth proportional to 71,151.54, 98,185.92 and 39,319.76 is: 54,259.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.54 : 98,185.92 = 39,319.76 : x
  2. Step 2: Convert to fraction form
    71,151.54/98,185.92 = 39,319.76/x
  3. Step 3: Cross multiply
    71,151.54x = 98,185.92 × 39,319.76
  4. Step 4: Simplify right side
    71,151.54x = 3,860,646,809.78
  5. Step 5: Solve for x
    x = 3,860,646,809.78/71,151.54
  6. Step 6: Final answer
    x = 54,259.50

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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.