Home / 60,789.36-83,890.20-35,639.28

Finding the Fourth Proportional to 60,789.36, 83,890.20 and 35,639.28

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Solution

The fourth proportional to 60,789.36, 83,890.20 and 35,639.28 is: 49,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,789.36 : 83,890.20 = 35,639.28 : x
  2. Step 2: Convert to fraction form
    60,789.36/83,890.20 = 35,639.28/x
  3. Step 3: Cross multiply
    60,789.36x = 83,890.20 × 35,639.28
  4. Step 4: Simplify right side
    60,789.36x = 2,989,786,327.06
  5. Step 5: Solve for x
    x = 2,989,786,327.06/60,789.36
  6. Step 6: Final answer
    x = 49,182.72

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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.