Home / 86,639.72-119,570.85-52,640.37

Finding the Fourth Proportional to 86,639.72, 119,570.85 and 52,640.37

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Solution

The fourth proportional to 86,639.72, 119,570.85 and 52,640.37 is: 72,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,639.72 : 119,570.85 = 52,640.37 : x
  2. Step 2: Convert to fraction form
    86,639.72/119,570.85 = 52,640.37/x
  3. Step 3: Cross multiply
    86,639.72x = 119,570.85 × 52,640.37
  4. Step 4: Simplify right side
    86,639.72x = 6,294,253,785.21
  5. Step 5: Solve for x
    x = 6,294,253,785.21/86,639.72
  6. Step 6: Final answer
    x = 72,648.60

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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.