Home / 65,383.78-90,232.61-36,312.28

Finding the Fourth Proportional to 65,383.78, 90,232.61 and 36,312.28

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Solution

The fourth proportional to 65,383.78, 90,232.61 and 36,312.28 is: 50,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,383.78 : 90,232.61 = 36,312.28 : x
  2. Step 2: Convert to fraction form
    65,383.78/90,232.61 = 36,312.28/x
  3. Step 3: Cross multiply
    65,383.78x = 90,232.61 × 36,312.28
  4. Step 4: Simplify right side
    65,383.78x = 3,276,551,664.65
  5. Step 5: Solve for x
    x = 3,276,551,664.65/65,383.78
  6. Step 6: Final answer
    x = 50,112.61

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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.