Home / 77,520.58-106,979.13-43,983.94

Finding the Fourth Proportional to 77,520.58, 106,979.13 and 43,983.94

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Solution

The fourth proportional to 77,520.58, 106,979.13 and 43,983.94 is: 60,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,520.58 : 106,979.13 = 43,983.94 : x
  2. Step 2: Convert to fraction form
    77,520.58/106,979.13 = 43,983.94/x
  3. Step 3: Cross multiply
    77,520.58x = 106,979.13 × 43,983.94
  4. Step 4: Simplify right side
    77,520.58x = 4,705,363,635.17
  5. Step 5: Solve for x
    x = 4,705,363,635.17/77,520.58
  6. Step 6: Final answer
    x = 60,698.25

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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.