Home / 81,426.08-122,124.48-28,835.84

Finding the Fourth Proportional to 81,426.08, 122,124.48 and 28,835.84

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Solution

The fourth proportional to 81,426.08, 122,124.48 and 28,835.84 is: 43,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.08 : 122,124.48 = 28,835.84 : x
  2. Step 2: Convert to fraction form
    81,426.08/122,124.48 = 28,835.84/x
  3. Step 3: Cross multiply
    81,426.08x = 122,124.48 × 28,835.84
  4. Step 4: Simplify right side
    81,426.08x = 3,521,561,965.36
  5. Step 5: Solve for x
    x = 3,521,561,965.36/81,426.08
  6. Step 6: Final answer
    x = 43,248.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.