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Finding the Fourth Proportional to 64,630.56, 89,241.84 and 41,980.80

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Solution

The fourth proportional to 64,630.56, 89,241.84 and 41,980.80 is: 57,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,630.56 : 89,241.84 = 41,980.80 : x
  2. Step 2: Convert to fraction form
    64,630.56/89,241.84 = 41,980.80/x
  3. Step 3: Cross multiply
    64,630.56x = 89,241.84 × 41,980.80
  4. Step 4: Simplify right side
    64,630.56x = 3,746,443,836.67
  5. Step 5: Solve for x
    x = 3,746,443,836.67/64,630.56
  6. Step 6: Final answer
    x = 57,967.06

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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.