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Finding the Fourth Proportional to 65,762.30, 90,750.13 and 37,081.70

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Solution

The fourth proportional to 65,762.30, 90,750.13 and 37,081.70 is: 51,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,762.30 : 90,750.13 = 37,081.70 : x
  2. Step 2: Convert to fraction form
    65,762.30/90,750.13 = 37,081.70/x
  3. Step 3: Cross multiply
    65,762.30x = 90,750.13 × 37,081.70
  4. Step 4: Simplify right side
    65,762.30x = 3,365,169,095.62
  5. Step 5: Solve for x
    x = 3,365,169,095.62/65,762.30
  6. Step 6: Final answer
    x = 51,171.71

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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.