Home / 81,268.88-112,156.02-45,461.30

Finding the Fourth Proportional to 81,268.88, 112,156.02 and 45,461.30

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Solution

The fourth proportional to 81,268.88, 112,156.02 and 45,461.30 is: 62,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,268.88 : 112,156.02 = 45,461.30 : x
  2. Step 2: Convert to fraction form
    81,268.88/112,156.02 = 45,461.30/x
  3. Step 3: Cross multiply
    81,268.88x = 112,156.02 × 45,461.30
  4. Step 4: Simplify right side
    81,268.88x = 5,098,757,911.25
  5. Step 5: Solve for x
    x = 5,098,757,911.25/81,268.88
  6. Step 6: Final answer
    x = 62,739.37

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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.