Home / 85,384.17-117,905.99-53,174.10

Finding the Fourth Proportional to 85,384.17, 117,905.99 and 53,174.10

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Solution

The fourth proportional to 85,384.17, 117,905.99 and 53,174.10 is: 73,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,384.17 : 117,905.99 = 53,174.10 : x
  2. Step 2: Convert to fraction form
    85,384.17/117,905.99 = 53,174.10/x
  3. Step 3: Cross multiply
    85,384.17x = 117,905.99 × 53,174.10
  4. Step 4: Simplify right side
    85,384.17x = 6,269,544,902.86
  5. Step 5: Solve for x
    x = 6,269,544,902.86/85,384.17
  6. Step 6: Final answer
    x = 73,427.49

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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.