Home / 66,272.83-99,416.15-21,282.82

Finding the Fourth Proportional to 66,272.83, 99,416.15 and 21,282.82

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Solution

The fourth proportional to 66,272.83, 99,416.15 and 21,282.82 is: 31,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,272.83 : 99,416.15 = 21,282.82 : x
  2. Step 2: Convert to fraction form
    66,272.83/99,416.15 = 21,282.82/x
  3. Step 3: Cross multiply
    66,272.83x = 99,416.15 × 21,282.82
  4. Step 4: Simplify right side
    66,272.83x = 2,115,855,670.59
  5. Step 5: Solve for x
    x = 2,115,855,670.59/66,272.83
  6. Step 6: Final answer
    x = 31,926.44

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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.