Home / 90,188.25-124,459.38-51,933.84

Finding the Fourth Proportional to 90,188.25, 124,459.38 and 51,933.84

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Solution

The fourth proportional to 90,188.25, 124,459.38 and 51,933.84 is: 71,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,188.25 : 124,459.38 = 51,933.84 : x
  2. Step 2: Convert to fraction form
    90,188.25/124,459.38 = 51,933.84/x
  3. Step 3: Cross multiply
    90,188.25x = 124,459.38 × 51,933.84
  4. Step 4: Simplify right side
    90,188.25x = 6,463,653,527.42
  5. Step 5: Solve for x
    x = 6,463,653,527.42/90,188.25
  6. Step 6: Final answer
    x = 71,668.47

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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.