Home / 105,674.60-145,829.76-57,927.80

Finding the Fourth Proportional to 105,674.60, 145,829.76 and 57,927.80

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Solution

The fourth proportional to 105,674.60, 145,829.76 and 57,927.80 is: 79,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,674.60 : 145,829.76 = 57,927.80 : x
  2. Step 2: Convert to fraction form
    105,674.60/145,829.76 = 57,927.80/x
  3. Step 3: Cross multiply
    105,674.60x = 145,829.76 × 57,927.80
  4. Step 4: Simplify right side
    105,674.60x = 8,447,597,171.33
  5. Step 5: Solve for x
    x = 8,447,597,171.33/105,674.60
  6. Step 6: Final answer
    x = 79,939.71

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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.