Home / 90,012.96-124,228.44-54,221.04

Finding the Fourth Proportional to 90,012.96, 124,228.44 and 54,221.04

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Solution

The fourth proportional to 90,012.96, 124,228.44 and 54,221.04 is: 74,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,012.96 : 124,228.44 = 54,221.04 : x
  2. Step 2: Convert to fraction form
    90,012.96/124,228.44 = 54,221.04/x
  3. Step 3: Cross multiply
    90,012.96x = 124,228.44 × 54,221.04
  4. Step 4: Simplify right side
    90,012.96x = 6,735,795,214.38
  5. Step 5: Solve for x
    x = 6,735,795,214.38/90,012.96
  6. Step 6: Final answer
    x = 74,831.39

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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.