Home / 90,918.92-125,459.13-50,636.43

Finding the Fourth Proportional to 90,918.92, 125,459.13 and 50,636.43

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Solution

The fourth proportional to 90,918.92, 125,459.13 and 50,636.43 is: 69,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,918.92 : 125,459.13 = 50,636.43 : x
  2. Step 2: Convert to fraction form
    90,918.92/125,459.13 = 50,636.43/x
  3. Step 3: Cross multiply
    90,918.92x = 125,459.13 × 50,636.43
  4. Step 4: Simplify right side
    90,918.92x = 6,352,802,686.51
  5. Step 5: Solve for x
    x = 6,352,802,686.51/90,918.92
  6. Step 6: Final answer
    x = 69,873.27

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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.