Home / 90,780.48-125,275.26-50,493.38

Finding the Fourth Proportional to 90,780.48, 125,275.26 and 50,493.38

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Solution

The fourth proportional to 90,780.48, 125,275.26 and 50,493.38 is: 69,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,780.48 : 125,275.26 = 50,493.38 : x
  2. Step 2: Convert to fraction form
    90,780.48/125,275.26 = 50,493.38/x
  3. Step 3: Cross multiply
    90,780.48x = 125,275.26 × 50,493.38
  4. Step 4: Simplify right side
    90,780.48x = 6,325,571,307.78
  5. Step 5: Solve for x
    x = 6,325,571,307.78/90,780.48
  6. Step 6: Final answer
    x = 69,679.86

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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.