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Finding the Fourth Proportional to 65,774.48, 90,771.24 and 37,479.44

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Solution

The fourth proportional to 65,774.48, 90,771.24 and 37,479.44 is: 51,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,774.48 : 90,771.24 = 37,479.44 : x
  2. Step 2: Convert to fraction form
    65,774.48/90,771.24 = 37,479.44/x
  3. Step 3: Cross multiply
    65,774.48x = 90,771.24 × 37,479.44
  4. Step 4: Simplify right side
    65,774.48x = 3,402,055,243.31
  5. Step 5: Solve for x
    x = 3,402,055,243.31/65,774.48
  6. Step 6: Final answer
    x = 51,723.03

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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.