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Finding the Fourth Proportional to 65,809.98, 90,817.77 and 35,595.30

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Solution

The fourth proportional to 65,809.98, 90,817.77 and 35,595.30 is: 49,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809.98 : 90,817.77 = 35,595.30 : x
  2. Step 2: Convert to fraction form
    65,809.98/90,817.77 = 35,595.30/x
  3. Step 3: Cross multiply
    65,809.98x = 90,817.77 × 35,595.30
  4. Step 4: Simplify right side
    65,809.98x = 3,232,685,768.48
  5. Step 5: Solve for x
    x = 3,232,685,768.48/65,809.98
  6. Step 6: Final answer
    x = 49,121.51

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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.