Home / 76,578.32-105,682.92-43,046.48

Finding the Fourth Proportional to 76,578.32, 105,682.92 and 43,046.48

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Solution

The fourth proportional to 76,578.32, 105,682.92 and 43,046.48 is: 59,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,578.32 : 105,682.92 = 43,046.48 : x
  2. Step 2: Convert to fraction form
    76,578.32/105,682.92 = 43,046.48/x
  3. Step 3: Cross multiply
    76,578.32x = 105,682.92 × 43,046.48
  4. Step 4: Simplify right side
    76,578.32x = 4,549,277,702.12
  5. Step 5: Solve for x
    x = 4,549,277,702.12/76,578.32
  6. Step 6: Final answer
    x = 59,406.86

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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.