Home / 66,216.56-99,345.58-21,874.46

Finding the Fourth Proportional to 66,216.56, 99,345.58 and 21,874.46

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Solution

The fourth proportional to 66,216.56, 99,345.58 and 21,874.46 is: 32,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,216.56 : 99,345.58 = 21,874.46 : x
  2. Step 2: Convert to fraction form
    66,216.56/99,345.58 = 21,874.46/x
  3. Step 3: Cross multiply
    66,216.56x = 99,345.58 × 21,874.46
  4. Step 4: Simplify right side
    66,216.56x = 2,173,130,915.89
  5. Step 5: Solve for x
    x = 2,173,130,915.89/66,216.56
  6. Step 6: Final answer
    x = 32,818.54

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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.