Home / 81,600.90-122,327.48-28,998.08

Finding the Fourth Proportional to 81,600.90, 122,327.48 and 28,998.08

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Solution

The fourth proportional to 81,600.90, 122,327.48 and 28,998.08 is: 43,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,600.90 : 122,327.48 = 28,998.08 : x
  2. Step 2: Convert to fraction form
    81,600.90/122,327.48 = 28,998.08/x
  3. Step 3: Cross multiply
    81,600.90x = 122,327.48 × 28,998.08
  4. Step 4: Simplify right side
    81,600.90x = 3,547,262,051.24
  5. Step 5: Solve for x
    x = 3,547,262,051.24/81,600.90
  6. Step 6: Final answer
    x = 43,470.87

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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.