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Finding the Fourth Proportional to 65,760.60, 90,711.90 and 37,461

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Solution

The fourth proportional to 65,760.60, 90,711.90 and 37,461 is: 51,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,760.60 : 90,711.90 = 37,461 : x
  2. Step 2: Convert to fraction form
    65,760.60/90,711.90 = 37,461/x
  3. Step 3: Cross multiply
    65,760.60x = 90,711.90 × 37,461
  4. Step 4: Simplify right side
    65,760.60x = 3,398,158,485.90
  5. Step 5: Solve for x
    x = 3,398,158,485.90/65,760.60
  6. Step 6: Final answer
    x = 51,674.69

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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.