Home / 65,799.08-90,778.38-43,150.65

Finding the Fourth Proportional to 65,799.08, 90,778.38 and 43,150.65

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Solution

The fourth proportional to 65,799.08, 90,778.38 and 43,150.65 is: 59,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,799.08 : 90,778.38 = 43,150.65 : x
  2. Step 2: Convert to fraction form
    65,799.08/90,778.38 = 43,150.65/x
  3. Step 3: Cross multiply
    65,799.08x = 90,778.38 × 43,150.65
  4. Step 4: Simplify right side
    65,799.08x = 3,917,146,159.43
  5. Step 5: Solve for x
    x = 3,917,146,159.43/65,799.08
  6. Step 6: Final answer
    x = 59,531.93

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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.