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Finding the Fourth Proportional to 64,671.68, 89,229.42 and 37,820.81

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Solution

The fourth proportional to 64,671.68, 89,229.42 and 37,820.81 is: 52,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,671.68 : 89,229.42 = 37,820.81 : x
  2. Step 2: Convert to fraction form
    64,671.68/89,229.42 = 37,820.81/x
  3. Step 3: Cross multiply
    64,671.68x = 89,229.42 × 37,820.81
  4. Step 4: Simplify right side
    64,671.68x = 3,374,728,494.08
  5. Step 5: Solve for x
    x = 3,374,728,494.08/64,671.68
  6. Step 6: Final answer
    x = 52,182.48

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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.