Home / 77,382.44-106,780.35-43,392.36

Finding the Fourth Proportional to 77,382.44, 106,780.35 and 43,392.36

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Solution

The fourth proportional to 77,382.44, 106,780.35 and 43,392.36 is: 59,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,382.44 : 106,780.35 = 43,392.36 : x
  2. Step 2: Convert to fraction form
    77,382.44/106,780.35 = 43,392.36/x
  3. Step 3: Cross multiply
    77,382.44x = 106,780.35 × 43,392.36
  4. Step 4: Simplify right side
    77,382.44x = 4,633,451,228.59
  5. Step 5: Solve for x
    x = 4,633,451,228.59/77,382.44
  6. Step 6: Final answer
    x = 59,877.30

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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.