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Finding the Fourth Proportional to 65,079.60, 89,807.54 and 36,784.68

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Solution

The fourth proportional to 65,079.60, 89,807.54 and 36,784.68 is: 50,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.60 : 89,807.54 = 36,784.68 : x
  2. Step 2: Convert to fraction form
    65,079.60/89,807.54 = 36,784.68/x
  3. Step 3: Cross multiply
    65,079.60x = 89,807.54 × 36,784.68
  4. Step 4: Simplify right side
    65,079.60x = 3,303,541,620.49
  5. Step 5: Solve for x
    x = 3,303,541,620.49/65,079.60
  6. Step 6: Final answer
    x = 50,761.55

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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.