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Finding the Fourth Proportional to 65,808.48, 90,815.72 and 37,134.22

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Solution

The fourth proportional to 65,808.48, 90,815.72 and 37,134.22 is: 51,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808.48 : 90,815.72 = 37,134.22 : x
  2. Step 2: Convert to fraction form
    65,808.48/90,815.72 = 37,134.22/x
  3. Step 3: Cross multiply
    65,808.48x = 90,815.72 × 37,134.22
  4. Step 4: Simplify right side
    65,808.48x = 3,372,370,925.94
  5. Step 5: Solve for x
    x = 3,372,370,925.94/65,808.48
  6. Step 6: Final answer
    x = 51,245.23

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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.