Home / 76,091.19-105,042.45-50,639.91

Finding the Fourth Proportional to 76,091.19, 105,042.45 and 50,639.91

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Solution

The fourth proportional to 76,091.19, 105,042.45 and 50,639.91 is: 69,907.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,091.19 : 105,042.45 = 50,639.91 : x
  2. Step 2: Convert to fraction form
    76,091.19/105,042.45 = 50,639.91/x
  3. Step 3: Cross multiply
    76,091.19x = 105,042.45 × 50,639.91
  4. Step 4: Simplify right side
    76,091.19x = 5,319,340,214.18
  5. Step 5: Solve for x
    x = 5,319,340,214.18/76,091.19
  6. Step 6: Final answer
    x = 69,907.44

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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.