Home / 83,558.27-115,384.55-56,800.32

Finding the Fourth Proportional to 83,558.27, 115,384.55 and 56,800.32

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Solution

The fourth proportional to 83,558.27, 115,384.55 and 56,800.32 is: 78,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,558.27 : 115,384.55 = 56,800.32 : x
  2. Step 2: Convert to fraction form
    83,558.27/115,384.55 = 56,800.32/x
  3. Step 3: Cross multiply
    83,558.27x = 115,384.55 × 56,800.32
  4. Step 4: Simplify right side
    83,558.27x = 6,553,879,079.05
  5. Step 5: Solve for x
    x = 6,553,879,079.05/83,558.27
  6. Step 6: Final answer
    x = 78,434.84

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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.