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Finding the Fourth Proportional to 85,299.66, 117,719.46 and 47,573.91

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Solution

The fourth proportional to 85,299.66, 117,719.46 and 47,573.91 is: 65,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,299.66 : 117,719.46 = 47,573.91 : x
  2. Step 2: Convert to fraction form
    85,299.66/117,719.46 = 47,573.91/x
  3. Step 3: Cross multiply
    85,299.66x = 117,719.46 × 47,573.91
  4. Step 4: Simplify right side
    85,299.66x = 5,600,374,995.29
  5. Step 5: Solve for x
    x = 5,600,374,995.29/85,299.66
  6. Step 6: Final answer
    x = 65,655.30

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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.