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Finding the Fourth Proportional to 84,245.54, 116,305.54 and 57,427.44

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Solution

The fourth proportional to 84,245.54, 116,305.54 and 57,427.44 is: 79,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.54 : 116,305.54 = 57,427.44 : x
  2. Step 2: Convert to fraction form
    84,245.54/116,305.54 = 57,427.44/x
  3. Step 3: Cross multiply
    84,245.54x = 116,305.54 × 57,427.44
  4. Step 4: Simplify right side
    84,245.54x = 6,679,129,420.02
  5. Step 5: Solve for x
    x = 6,679,129,420.02/84,245.54
  6. Step 6: Final answer
    x = 79,281.70

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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.