Home / 71,120.66-98,149.32-40,905.95

Finding the Fourth Proportional to 71,120.66, 98,149.32 and 40,905.95

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Solution

The fourth proportional to 71,120.66, 98,149.32 and 40,905.95 is: 56,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.66 : 98,149.32 = 40,905.95 : x
  2. Step 2: Convert to fraction form
    71,120.66/98,149.32 = 40,905.95/x
  3. Step 3: Cross multiply
    71,120.66x = 98,149.32 × 40,905.95
  4. Step 4: Simplify right side
    71,120.66x = 4,014,890,685.71
  5. Step 5: Solve for x
    x = 4,014,890,685.71/71,120.66
  6. Step 6: Final answer
    x = 56,451.82

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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.