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Finding the Fourth Proportional to 45,081, 62,189.10 and 28,952.28

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Solution

The fourth proportional to 45,081, 62,189.10 and 28,952.28 is: 39,939.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,081 : 62,189.10 = 28,952.28 : x
  2. Step 2: Convert to fraction form
    45,081/62,189.10 = 28,952.28/x
  3. Step 3: Cross multiply
    45,081x = 62,189.10 × 28,952.28
  4. Step 4: Simplify right side
    45,081x = 1,800,516,236.15
  5. Step 5: Solve for x
    x = 1,800,516,236.15/45,081
  6. Step 6: Final answer
    x = 39,939.58

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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.