Home / 65,788.54-90,788.12-35,573.78

Finding the Fourth Proportional to 65,788.54, 90,788.12 and 35,573.78

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Solution

The fourth proportional to 65,788.54, 90,788.12 and 35,573.78 is: 49,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.54 : 90,788.12 = 35,573.78 : x
  2. Step 2: Convert to fraction form
    65,788.54/90,788.12 = 35,573.78/x
  3. Step 3: Cross multiply
    65,788.54x = 90,788.12 × 35,573.78
  4. Step 4: Simplify right side
    65,788.54x = 3,229,676,656.59
  5. Step 5: Solve for x
    x = 3,229,676,656.59/65,788.54
  6. Step 6: Final answer
    x = 49,091.78

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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.