Home / 83,458.74-125,270.13-61,208.75

Finding the Fourth Proportional to 83,458.74, 125,270.13 and 61,208.75

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Solution

The fourth proportional to 83,458.74, 125,270.13 and 61,208.75 is: 91,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458.74 : 125,270.13 = 61,208.75 : x
  2. Step 2: Convert to fraction form
    83,458.74/125,270.13 = 61,208.75/x
  3. Step 3: Cross multiply
    83,458.74x = 125,270.13 × 61,208.75
  4. Step 4: Simplify right side
    83,458.74x = 7,667,628,069.64
  5. Step 5: Solve for x
    x = 7,667,628,069.64/83,458.74
  6. Step 6: Final answer
    x = 91,873.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.