Home / 75,115.78-103,660.02-41,124.58

Finding the Fourth Proportional to 75,115.78, 103,660.02 and 41,124.58

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Solution

The fourth proportional to 75,115.78, 103,660.02 and 41,124.58 is: 56,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.78 : 103,660.02 = 41,124.58 : x
  2. Step 2: Convert to fraction form
    75,115.78/103,660.02 = 41,124.58/x
  3. Step 3: Cross multiply
    75,115.78x = 103,660.02 × 41,124.58
  4. Step 4: Simplify right side
    75,115.78x = 4,262,974,785.29
  5. Step 5: Solve for x
    x = 4,262,974,785.29/75,115.78
  6. Step 6: Final answer
    x = 56,752.05

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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.