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Finding the Fourth Proportional to 64,710.75, 89,304.48 and 36,418.26

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Solution

The fourth proportional to 64,710.75, 89,304.48 and 36,418.26 is: 50,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710.75 : 89,304.48 = 36,418.26 : x
  2. Step 2: Convert to fraction form
    64,710.75/89,304.48 = 36,418.26/x
  3. Step 3: Cross multiply
    64,710.75x = 89,304.48 × 36,418.26
  4. Step 4: Simplify right side
    64,710.75x = 3,252,313,771.80
  5. Step 5: Solve for x
    x = 3,252,313,771.80/64,710.75
  6. Step 6: Final answer
    x = 50,259.25

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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.