Home / 81,318.33-112,224.24-45,507.60

Finding the Fourth Proportional to 81,318.33, 112,224.24 and 45,507.60

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Solution

The fourth proportional to 81,318.33, 112,224.24 and 45,507.60 is: 62,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,318.33 : 112,224.24 = 45,507.60 : x
  2. Step 2: Convert to fraction form
    81,318.33/112,224.24 = 45,507.60/x
  3. Step 3: Cross multiply
    81,318.33x = 112,224.24 × 45,507.60
  4. Step 4: Simplify right side
    81,318.33x = 5,107,055,824.22
  5. Step 5: Solve for x
    x = 5,107,055,824.22/81,318.33
  6. Step 6: Final answer
    x = 62,803.26

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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.