Home / 90,806.16-125,308.71-50,521.62

Finding the Fourth Proportional to 90,806.16, 125,308.71 and 50,521.62

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Solution

The fourth proportional to 90,806.16, 125,308.71 and 50,521.62 is: 69,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,806.16 : 125,308.71 = 50,521.62 : x
  2. Step 2: Convert to fraction form
    90,806.16/125,308.71 = 50,521.62/x
  3. Step 3: Cross multiply
    90,806.16x = 125,308.71 × 50,521.62
  4. Step 4: Simplify right side
    90,806.16x = 6,330,799,029.31
  5. Step 5: Solve for x
    x = 6,330,799,029.31/90,806.16
  6. Step 6: Final answer
    x = 69,717.73

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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.