Home / 85,953.04-128,709.24-50,917.84

Finding the Fourth Proportional to 85,953.04, 128,709.24 and 50,917.84

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Solution

The fourth proportional to 85,953.04, 128,709.24 and 50,917.84 is: 76,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,953.04 : 128,709.24 = 50,917.84 : x
  2. Step 2: Convert to fraction form
    85,953.04/128,709.24 = 50,917.84/x
  3. Step 3: Cross multiply
    85,953.04x = 128,709.24 × 50,917.84
  4. Step 4: Simplify right side
    85,953.04x = 6,553,596,488.84
  5. Step 5: Solve for x
    x = 6,553,596,488.84/85,953.04
  6. Step 6: Final answer
    x = 76,246.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.