Home / 66,330.72-99,502.62-21,357.22

Finding the Fourth Proportional to 66,330.72, 99,502.62 and 21,357.22

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Solution

The fourth proportional to 66,330.72, 99,502.62 and 21,357.22 is: 32,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.72 : 99,502.62 = 21,357.22 : x
  2. Step 2: Convert to fraction form
    66,330.72/99,502.62 = 21,357.22/x
  3. Step 3: Cross multiply
    66,330.72x = 99,502.62 × 21,357.22
  4. Step 4: Simplify right side
    66,330.72x = 2,125,099,345.92
  5. Step 5: Solve for x
    x = 2,125,099,345.92/66,330.72
  6. Step 6: Final answer
    x = 32,037.94

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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.