Home / 71,149.02-98,187.60-39,319.92

Finding the Fourth Proportional to 71,149.02, 98,187.60 and 39,319.92

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Solution

The fourth proportional to 71,149.02, 98,187.60 and 39,319.92 is: 54,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.02 : 98,187.60 = 39,319.92 : x
  2. Step 2: Convert to fraction form
    71,149.02/98,187.60 = 39,319.92/x
  3. Step 3: Cross multiply
    71,149.02x = 98,187.60 × 39,319.92
  4. Step 4: Simplify right side
    71,149.02x = 3,860,728,576.99
  5. Step 5: Solve for x
    x = 3,860,728,576.99/71,149.02
  6. Step 6: Final answer
    x = 54,262.57

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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.