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Finding the Fourth Proportional to 85,497.60, 117,950.40 and 53,644.80

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Solution

The fourth proportional to 85,497.60, 117,950.40 and 53,644.80 is: 74,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,497.60 : 117,950.40 = 53,644.80 : x
  2. Step 2: Convert to fraction form
    85,497.60/117,950.40 = 53,644.80/x
  3. Step 3: Cross multiply
    85,497.60x = 117,950.40 × 53,644.80
  4. Step 4: Simplify right side
    85,497.60x = 6,327,425,617.92
  5. Step 5: Solve for x
    x = 6,327,425,617.92/85,497.60
  6. Step 6: Final answer
    x = 74,007.06

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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.