Home / 66,303.31-99,433.77-21,921.79

Finding the Fourth Proportional to 66,303.31, 99,433.77 and 21,921.79

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Solution

The fourth proportional to 66,303.31, 99,433.77 and 21,921.79 is: 32,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,303.31 : 99,433.77 = 21,921.79 : x
  2. Step 2: Convert to fraction form
    66,303.31/99,433.77 = 21,921.79/x
  3. Step 3: Cross multiply
    66,303.31x = 99,433.77 × 21,921.79
  4. Step 4: Simplify right side
    66,303.31x = 2,179,766,224.85
  5. Step 5: Solve for x
    x = 2,179,766,224.85/66,303.31
  6. Step 6: Final answer
    x = 32,875.68

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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.