Home / 83,431.67-115,134.75-45,190.49

Finding the Fourth Proportional to 83,431.67, 115,134.75 and 45,190.49

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Solution

The fourth proportional to 83,431.67, 115,134.75 and 45,190.49 is: 62,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,431.67 : 115,134.75 = 45,190.49 : x
  2. Step 2: Convert to fraction form
    83,431.67/115,134.75 = 45,190.49/x
  3. Step 3: Cross multiply
    83,431.67x = 115,134.75 × 45,190.49
  4. Step 4: Simplify right side
    83,431.67x = 5,202,995,768.53
  5. Step 5: Solve for x
    x = 5,202,995,768.53/83,431.67
  6. Step 6: Final answer
    x = 62,362.36

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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.