Home / 427,587.76-641,332.50-112,069.54

Finding the Fourth Proportional to 427,587.76, 641,332.50 and 112,069.54

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Solution

The fourth proportional to 427,587.76, 641,332.50 and 112,069.54 is: 168,091.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,587.76 : 641,332.50 = 112,069.54 : x
  2. Step 2: Convert to fraction form
    427,587.76/641,332.50 = 112,069.54/x
  3. Step 3: Cross multiply
    427,587.76x = 641,332.50 × 112,069.54
  4. Step 4: Simplify right side
    427,587.76x = 71,873,838,262.05
  5. Step 5: Solve for x
    x = 71,873,838,262.05/427,587.76
  6. Step 6: Final answer
    x = 168,091.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.