Home / 65,639.28-90,590.84-36,964.54

Finding the Fourth Proportional to 65,639.28, 90,590.84 and 36,964.54

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Solution

The fourth proportional to 65,639.28, 90,590.84 and 36,964.54 is: 51,015.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,639.28 : 90,590.84 = 36,964.54 : x
  2. Step 2: Convert to fraction form
    65,639.28/90,590.84 = 36,964.54/x
  3. Step 3: Cross multiply
    65,639.28x = 90,590.84 × 36,964.54
  4. Step 4: Simplify right side
    65,639.28x = 3,348,648,317.51
  5. Step 5: Solve for x
    x = 3,348,648,317.51/65,639.28
  6. Step 6: Final answer
    x = 51,015.92

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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.