Home / 65,100.12-89,839.85-36,418.83

Finding the Fourth Proportional to 65,100.12, 89,839.85 and 36,418.83

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Solution

The fourth proportional to 65,100.12, 89,839.85 and 36,418.83 is: 50,258.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,100.12 : 89,839.85 = 36,418.83 : x
  2. Step 2: Convert to fraction form
    65,100.12/89,839.85 = 36,418.83/x
  3. Step 3: Cross multiply
    65,100.12x = 89,839.85 × 36,418.83
  4. Step 4: Simplify right side
    65,100.12x = 3,271,862,042.28
  5. Step 5: Solve for x
    x = 3,271,862,042.28/65,100.12
  6. Step 6: Final answer
    x = 50,258.92

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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.