Home / 85,455.36-117,918.24-51,463.30

Finding the Fourth Proportional to 85,455.36, 117,918.24 and 51,463.30

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Solution

The fourth proportional to 85,455.36, 117,918.24 and 51,463.30 is: 71,013.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,455.36 : 117,918.24 = 51,463.30 : x
  2. Step 2: Convert to fraction form
    85,455.36/117,918.24 = 51,463.30/x
  3. Step 3: Cross multiply
    85,455.36x = 117,918.24 × 51,463.30
  4. Step 4: Simplify right side
    85,455.36x = 6,068,461,760.59
  5. Step 5: Solve for x
    x = 6,068,461,760.59/85,455.36
  6. Step 6: Final answer
    x = 71,013.24

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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.