Home / 80,950.47-111,712.01-45,140.37

Finding the Fourth Proportional to 80,950.47, 111,712.01 and 45,140.37

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Solution

The fourth proportional to 80,950.47, 111,712.01 and 45,140.37 is: 62,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,950.47 : 111,712.01 = 45,140.37 : x
  2. Step 2: Convert to fraction form
    80,950.47/111,712.01 = 45,140.37/x
  3. Step 3: Cross multiply
    80,950.47x = 111,712.01 × 45,140.37
  4. Step 4: Simplify right side
    80,950.47x = 5,042,721,239.14
  5. Step 5: Solve for x
    x = 5,042,721,239.14/80,950.47
  6. Step 6: Final answer
    x = 62,293.91

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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.