Home / 83,620.64-125,426.09-61,154.07

Finding the Fourth Proportional to 83,620.64, 125,426.09 and 61,154.07

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Solution

The fourth proportional to 83,620.64, 125,426.09 and 61,154.07 is: 91,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.64 : 125,426.09 = 61,154.07 : x
  2. Step 2: Convert to fraction form
    83,620.64/125,426.09 = 61,154.07/x
  3. Step 3: Cross multiply
    83,620.64x = 125,426.09 × 61,154.07
  4. Step 4: Simplify right side
    83,620.64x = 7,670,315,887.69
  5. Step 5: Solve for x
    x = 7,670,315,887.69/83,620.64
  6. Step 6: Final answer
    x = 91,727.54

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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.