Home / 75,730.46-104,520.12-57,791.39

Finding the Fourth Proportional to 75,730.46, 104,520.12 and 57,791.39

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Solution

The fourth proportional to 75,730.46, 104,520.12 and 57,791.39 is: 79,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,730.46 : 104,520.12 = 57,791.39 : x
  2. Step 2: Convert to fraction form
    75,730.46/104,520.12 = 57,791.39/x
  3. Step 3: Cross multiply
    75,730.46x = 104,520.12 × 57,791.39
  4. Step 4: Simplify right side
    75,730.46x = 6,040,363,017.77
  5. Step 5: Solve for x
    x = 6,040,363,017.77/75,730.46
  6. Step 6: Final answer
    x = 79,761.34

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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.