Home / 75,225.05-103,700.71-57,288.92

Finding the Fourth Proportional to 75,225.05, 103,700.71 and 57,288.92

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Solution

The fourth proportional to 75,225.05, 103,700.71 and 57,288.92 is: 78,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,225.05 : 103,700.71 = 57,288.92 : x
  2. Step 2: Convert to fraction form
    75,225.05/103,700.71 = 57,288.92/x
  3. Step 3: Cross multiply
    75,225.05x = 103,700.71 × 57,288.92
  4. Step 4: Simplify right side
    75,225.05x = 5,940,901,493.31
  5. Step 5: Solve for x
    x = 5,940,901,493.31/75,225.05
  6. Step 6: Final answer
    x = 78,975.04

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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.