Home / 76,939.76-106,147.08-45,097.04

Finding the Fourth Proportional to 76,939.76, 106,147.08 and 45,097.04

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Solution

The fourth proportional to 76,939.76, 106,147.08 and 45,097.04 is: 62,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.76 : 106,147.08 = 45,097.04 : x
  2. Step 2: Convert to fraction form
    76,939.76/106,147.08 = 45,097.04/x
  3. Step 3: Cross multiply
    76,939.76x = 106,147.08 × 45,097.04
  4. Step 4: Simplify right side
    76,939.76x = 4,786,919,112.64
  5. Step 5: Solve for x
    x = 4,786,919,112.64/76,939.76
  6. Step 6: Final answer
    x = 62,216.45

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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.