Home / 90,489.33-124,890.21-50,216.07

Finding the Fourth Proportional to 90,489.33, 124,890.21 and 50,216.07

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Solution

The fourth proportional to 90,489.33, 124,890.21 and 50,216.07 is: 69,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,489.33 : 124,890.21 = 50,216.07 : x
  2. Step 2: Convert to fraction form
    90,489.33/124,890.21 = 50,216.07/x
  3. Step 3: Cross multiply
    90,489.33x = 124,890.21 × 50,216.07
  4. Step 4: Simplify right side
    90,489.33x = 6,271,495,527.67
  5. Step 5: Solve for x
    x = 6,271,495,527.67/90,489.33
  6. Step 6: Final answer
    x = 69,306.46

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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.