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Finding the Fourth Proportional to 74,451.56, 102,742.53 and 45,371.52

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Solution

The fourth proportional to 74,451.56, 102,742.53 and 45,371.52 is: 62,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,451.56 : 102,742.53 = 45,371.52 : x
  2. Step 2: Convert to fraction form
    74,451.56/102,742.53 = 45,371.52/x
  3. Step 3: Cross multiply
    74,451.56x = 102,742.53 × 45,371.52
  4. Step 4: Simplify right side
    74,451.56x = 4,661,584,295.64
  5. Step 5: Solve for x
    x = 4,661,584,295.64/74,451.56
  6. Step 6: Final answer
    x = 62,612.32

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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.