Home / 71,078.06-98,086.20-40,862.60

Finding the Fourth Proportional to 71,078.06, 98,086.20 and 40,862.60

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Solution

The fourth proportional to 71,078.06, 98,086.20 and 40,862.60 is: 56,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,078.06 : 98,086.20 = 40,862.60 : x
  2. Step 2: Convert to fraction form
    71,078.06/98,086.20 = 40,862.60/x
  3. Step 3: Cross multiply
    71,078.06x = 98,086.20 × 40,862.60
  4. Step 4: Simplify right side
    71,078.06x = 4,008,057,156.12
  5. Step 5: Solve for x
    x = 4,008,057,156.12/71,078.06
  6. Step 6: Final answer
    x = 56,389.51

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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.