Home / 80,706.08-111,398.64-52,415.84

Finding the Fourth Proportional to 80,706.08, 111,398.64 and 52,415.84

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Solution

The fourth proportional to 80,706.08, 111,398.64 and 52,415.84 is: 72,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,706.08 : 111,398.64 = 52,415.84 : x
  2. Step 2: Convert to fraction form
    80,706.08/111,398.64 = 52,415.84/x
  3. Step 3: Cross multiply
    80,706.08x = 111,398.64 × 52,415.84
  4. Step 4: Simplify right side
    80,706.08x = 5,839,053,290.46
  5. Step 5: Solve for x
    x = 5,839,053,290.46/80,706.08
  6. Step 6: Final answer
    x = 72,349.61

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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.