Home / 65,220.48-90,005.34-36,539.82

Finding the Fourth Proportional to 65,220.48, 90,005.34 and 36,539.82

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Solution

The fourth proportional to 65,220.48, 90,005.34 and 36,539.82 is: 50,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.48 : 90,005.34 = 36,539.82 : x
  2. Step 2: Convert to fraction form
    65,220.48/90,005.34 = 36,539.82/x
  3. Step 3: Cross multiply
    65,220.48x = 90,005.34 × 36,539.82
  4. Step 4: Simplify right side
    65,220.48x = 3,288,778,922.64
  5. Step 5: Solve for x
    x = 3,288,778,922.64/65,220.48
  6. Step 6: Final answer
    x = 50,425.56

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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.