Home / 56,529.84-78,015.24-31,379.16

Finding the Fourth Proportional to 56,529.84, 78,015.24 and 31,379.16

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Solution

The fourth proportional to 56,529.84, 78,015.24 and 31,379.16 is: 43,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,529.84 : 78,015.24 = 31,379.16 : x
  2. Step 2: Convert to fraction form
    56,529.84/78,015.24 = 31,379.16/x
  3. Step 3: Cross multiply
    56,529.84x = 78,015.24 × 31,379.16
  4. Step 4: Simplify right side
    56,529.84x = 2,448,052,698.40
  5. Step 5: Solve for x
    x = 2,448,052,698.40/56,529.84
  6. Step 6: Final answer
    x = 43,305.49

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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.