Home / 66,147.31-99,233.27-21,777.18

Finding the Fourth Proportional to 66,147.31, 99,233.27 and 21,777.18

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Solution

The fourth proportional to 66,147.31, 99,233.27 and 21,777.18 is: 32,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.31 : 99,233.27 = 21,777.18 : x
  2. Step 2: Convert to fraction form
    66,147.31/99,233.27 = 21,777.18/x
  3. Step 3: Cross multiply
    66,147.31x = 99,233.27 × 21,777.18
  4. Step 4: Simplify right side
    66,147.31x = 2,161,020,782.78
  5. Step 5: Solve for x
    x = 2,161,020,782.78/66,147.31
  6. Step 6: Final answer
    x = 32,669.82

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1.5x scale

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.