Home / 66,026.34-99,029.79-21,657.78

Finding the Fourth Proportional to 66,026.34, 99,029.79 and 21,657.78

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Solution

The fourth proportional to 66,026.34, 99,029.79 and 21,657.78 is: 32,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,026.34 : 99,029.79 = 21,657.78 : x
  2. Step 2: Convert to fraction form
    66,026.34/99,029.79 = 21,657.78/x
  3. Step 3: Cross multiply
    66,026.34x = 99,029.79 × 21,657.78
  4. Step 4: Simplify right side
    66,026.34x = 2,144,765,405.27
  5. Step 5: Solve for x
    x = 2,144,765,405.27/66,026.34
  6. Step 6: Final answer
    x = 32,483.48

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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.