Home / 69,143.64-95,393.04-40,454.28

Finding the Fourth Proportional to 69,143.64, 95,393.04 and 40,454.28

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Solution

The fourth proportional to 69,143.64, 95,393.04 and 40,454.28 is: 55,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,143.64 : 95,393.04 = 40,454.28 : x
  2. Step 2: Convert to fraction form
    69,143.64/95,393.04 = 40,454.28/x
  3. Step 3: Cross multiply
    69,143.64x = 95,393.04 × 40,454.28
  4. Step 4: Simplify right side
    69,143.64x = 3,859,056,750.21
  5. Step 5: Solve for x
    x = 3,859,056,750.21/69,143.64
  6. Step 6: Final answer
    x = 55,812.17

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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.