Home / 90,688.66-125,165.82-58,414.12

Finding the Fourth Proportional to 90,688.66, 125,165.82 and 58,414.12

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Solution

The fourth proportional to 90,688.66, 125,165.82 and 58,414.12 is: 80,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,688.66 : 125,165.82 = 58,414.12 : x
  2. Step 2: Convert to fraction form
    90,688.66/125,165.82 = 58,414.12/x
  3. Step 3: Cross multiply
    90,688.66x = 125,165.82 × 58,414.12
  4. Step 4: Simplify right side
    90,688.66x = 7,311,451,229.38
  5. Step 5: Solve for x
    x = 7,311,451,229.38/90,688.66
  6. Step 6: Final answer
    x = 80,621.45

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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.