Home / 90,998.81-125,582.00-50,712.23

Finding the Fourth Proportional to 90,998.81, 125,582.00 and 50,712.23

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Solution

The fourth proportional to 90,998.81, 125,582.00 and 50,712.23 is: 69,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.81 : 125,582.00 = 50,712.23 : x
  2. Step 2: Convert to fraction form
    90,998.81/125,582.00 = 50,712.23/x
  3. Step 3: Cross multiply
    90,998.81x = 125,582.00 × 50,712.23
  4. Step 4: Simplify right side
    90,998.81x = 6,368,542,386.39
  5. Step 5: Solve for x
    x = 6,368,542,386.39/90,998.81
  6. Step 6: Final answer
    x = 69,984.90

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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.