Home / 51,929.11-71,660.11-29,272.81

Finding the Fourth Proportional to 51,929.11, 71,660.11 and 29,272.81

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Solution

The fourth proportional to 51,929.11, 71,660.11 and 29,272.81 is: 40,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,929.11 : 71,660.11 = 29,272.81 : x
  2. Step 2: Convert to fraction form
    51,929.11/71,660.11 = 29,272.81/x
  3. Step 3: Cross multiply
    51,929.11x = 71,660.11 × 29,272.81
  4. Step 4: Simplify right side
    51,929.11x = 2,097,692,784.61
  5. Step 5: Solve for x
    x = 2,097,692,784.61/51,929.11
  6. Step 6: Final answer
    x = 40,395.32

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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.