Home / 57,643.46-79,546-31,803.04

Finding the Fourth Proportional to 57,643.46, 79,546 and 31,803.04

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Solution

The fourth proportional to 57,643.46, 79,546 and 31,803.04 is: 43,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,643.46 : 79,546 = 31,803.04 : x
  2. Step 2: Convert to fraction form
    57,643.46/79,546 = 31,803.04/x
  3. Step 3: Cross multiply
    57,643.46x = 79,546 × 31,803.04
  4. Step 4: Simplify right side
    57,643.46x = 2,529,804,619.84
  5. Step 5: Solve for x
    x = 2,529,804,619.84/57,643.46
  6. Step 6: Final answer
    x = 43,887.11

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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.