Home / 80,513.91-111,032.64-58,690.35

Finding the Fourth Proportional to 80,513.91, 111,032.64 and 58,690.35

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Solution

The fourth proportional to 80,513.91, 111,032.64 and 58,690.35 is: 80,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,513.91 : 111,032.64 = 58,690.35 : x
  2. Step 2: Convert to fraction form
    80,513.91/111,032.64 = 58,690.35/x
  3. Step 3: Cross multiply
    80,513.91x = 111,032.64 × 58,690.35
  4. Step 4: Simplify right side
    80,513.91x = 6,516,544,503.02
  5. Step 5: Solve for x
    x = 6,516,544,503.02/80,513.91
  6. Step 6: Final answer
    x = 80,936.88

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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.