Home / 72,555,346.32-100,133,450.28-54,188,745.36

Finding the Fourth Proportional to 72,555,346.32, 100,133,450.28 and 54,188,745.36

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Solution

The fourth proportional to 72,555,346.32, 100,133,450.28 and 54,188,745.36 is: 74,785,750.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555,346.32 : 100,133,450.28 = 54,188,745.36 : x
  2. Step 2: Convert to fraction form
    72,555,346.32/100,133,450.28 = 54,188,745.36/x
  3. Step 3: Cross multiply
    72,555,346.32x = 100,133,450.28 × 54,188,745.36
  4. Step 4: Simplify right side
    72,555,346.32x = 5,426,106,039,241,141
  5. Step 5: Solve for x
    x = 5,426,106,039,241,141/72,555,346.32
  6. Step 6: Final answer
    x = 74,785,750.66

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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.