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Finding the Fourth Proportional to 81,369.36, 112,276.62 and 45,560.88

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Solution

The fourth proportional to 81,369.36, 112,276.62 and 45,560.88 is: 62,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,369.36 : 112,276.62 = 45,560.88 : x
  2. Step 2: Convert to fraction form
    81,369.36/112,276.62 = 45,560.88/x
  3. Step 3: Cross multiply
    81,369.36x = 112,276.62 × 45,560.88
  4. Step 4: Simplify right side
    81,369.36x = 5,115,421,610.63
  5. Step 5: Solve for x
    x = 5,115,421,610.63/81,369.36
  6. Step 6: Final answer
    x = 62,866.68

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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.