Home / 92,917.12-128,225.97-54,678.16

Finding the Fourth Proportional to 92,917.12, 128,225.97 and 54,678.16

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Solution

The fourth proportional to 92,917.12, 128,225.97 and 54,678.16 is: 75,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,917.12 : 128,225.97 = 54,678.16 : x
  2. Step 2: Convert to fraction form
    92,917.12/128,225.97 = 54,678.16/x
  3. Step 3: Cross multiply
    92,917.12x = 128,225.97 × 54,678.16
  4. Step 4: Simplify right side
    92,917.12x = 7,011,160,103.82
  5. Step 5: Solve for x
    x = 7,011,160,103.82/92,917.12
  6. Step 6: Final answer
    x = 75,456.06

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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.