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Finding the Fourth Proportional to 56,496.60, 84,817.80 and 45,415.80

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Solution

The fourth proportional to 56,496.60, 84,817.80 and 45,415.80 is: 68,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496.60 : 84,817.80 = 45,415.80 : x
  2. Step 2: Convert to fraction form
    56,496.60/84,817.80 = 45,415.80/x
  3. Step 3: Cross multiply
    56,496.60x = 84,817.80 × 45,415.80
  4. Step 4: Simplify right side
    56,496.60x = 3,852,068,241.24
  5. Step 5: Solve for x
    x = 3,852,068,241.24/56,496.60
  6. Step 6: Final answer
    x = 68,182.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.