Home / 77,787.91-107,346.09-43,796.32

Finding the Fourth Proportional to 77,787.91, 107,346.09 and 43,796.32

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Solution

The fourth proportional to 77,787.91, 107,346.09 and 43,796.32 is: 60,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,787.91 : 107,346.09 = 43,796.32 : x
  2. Step 2: Convert to fraction form
    77,787.91/107,346.09 = 43,796.32/x
  3. Step 3: Cross multiply
    77,787.91x = 107,346.09 × 43,796.32
  4. Step 4: Simplify right side
    77,787.91x = 4,701,363,708.39
  5. Step 5: Solve for x
    x = 4,701,363,708.39/77,787.91
  6. Step 6: Final answer
    x = 60,438.23

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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.