Home / 75,682.38-104,402.04-57,746.28

Finding the Fourth Proportional to 75,682.38, 104,402.04 and 57,746.28

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Solution

The fourth proportional to 75,682.38, 104,402.04 and 57,746.28 is: 79,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,682.38 : 104,402.04 = 57,746.28 : x
  2. Step 2: Convert to fraction form
    75,682.38/104,402.04 = 57,746.28/x
  3. Step 3: Cross multiply
    75,682.38x = 104,402.04 × 57,746.28
  4. Step 4: Simplify right side
    75,682.38x = 6,028,829,434.41
  5. Step 5: Solve for x
    x = 6,028,829,434.41/75,682.38
  6. Step 6: Final answer
    x = 79,659.62

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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.